U2722A/U2723A User's Guide
Contents
1. Bumpers 4 U2722A U2723A User s Guide Getting Started 1 U2722A USB Modular Source Measure Unit front view om 0 H Output connector Channel 1 measag faw sto G o s USB indicator ka A s all Power indicator L JH Output connector Channel 1 Z p NIE stote os USB indicator ba A JIG Power indicator L H U2722A U2723A User s Guide 5 1 Getting Started U2722A USB Modular Source Measure Unit rear view USB inlet 12V m2 3 0A Ss p 80999 fi E f et TEESE 55 pin backplane connector o Fastening hole for USB cable with locking mechanism Power inlet U2723A USB Modular Source Measure Unit rear view Lr mn HA USB inlet Rear ventilation fan 2 55 pin backplane connector Fastening hole for USB cable with locking mechanism Power inlet U2722A U2723A User s Guide Getting Started 1 Product Dimensions Dimensions without bumpers Top view 105 00 mm jil 175 00 mm p i Wi dala Front view t Agilent vara kan banne i X n e a vue r 50 00 MM area U2722A U2723A User s Guide 7 1 G2. The following symbols on the instrument and in the documentation indicate precautions which must be taken to maintain safe operation of the instrument Direct current DC Equipment protected throughout by double insulation or reinforced insulation Alternating current AC Off supply Both direct and alternating current On supply Three phase alternating current Caution risk of electric shock Earth ground terminal Caution risk of danger refer to this manual for specific Warning or Caution information Protective conductor terminal Caution hot surface Frame or chassis terminal Out position of a bi stable push control Equipotentiality gt IEL el Pp Oe eP O In position of a bi stable push control U2722A U2723A User s Guide General Safety Information Do not use the device if it is damaged Before you use the device inspect the casing Look for cracks or missing plastic Do not operate the device around explosive gas vapor or dust Always use the device with the cables provided Observe all markings on the device before establishing any connection Turn off the device and application system power before connecting to the 1 0 terminals When servicing the device use only the specified replacement parts Do not operate the device with the cover removed or loosened Do not connect any terminal block or cables prior to performing self test process Use onl
3. Turn off the U2722A U2723A power Connect a load to the OUTPUT and OUTPUT terminals of an output channel 2 Turn on the U2722A U2723A The U2722A U2723A will go into a power on or reset state the output is disabled Ensure that the USB interface has already been connected between the U2722A U2723A and PC Run the Agilent Measurement Manager software to control the U2722A U2723A remotely On the application panel as shown in Figure 2 2 select the channel that you have connected Select the required voltage and current ranges Otherwise enable Auto Range for both voltage and current Proceed to select Source Voltage Channel 1 Channel 2 Channel 3 Matrix A Basic Settings Voltage Range 2V Ni Curent Range 1 uA Source Voltage Curent Drive Voltage 0 0000 3 v J Input Protection 0 1000 Elua J C Auto Range Figure 2 2 Panel view of the Agilent Measurement Manager U2722A U2723A User s Guide Operation and Features 2 Click Output to enable the output as shown in Figure 2 3 The button will turn green Clicking Output again disables the output and the button will turn to gray Range 2 120 m Source Voltage Figure 2 3 Turning on the U2722A U2723A Range 2 120 m Source Voltage Figure 2 4 Turning off the U2722A U2723A In source voltage mode the U2722A U2723A will maintain a constant output voltage based on the set value The output current will vary according to the loa
4. 1 2 3 and MEASure ARRay CURRent DC 9112 131 commandas are governed by the number of data points and time interval settings You are required to configure the time out settings via the Agilent 10 Libraries when different values of the sweep points and time interval are set For more information on how to set the time out and what are the recommended time out settings refer to Appendix B Time out Settings on page 60 U2722A U2723A User s Guide Operation and Features 2 System Related Operation This section provides information on system related topics such as executing a self test performing a self calibration routine and reading error conditions Self test To perform the self test proceed as follows Agilent Measurement Manager operation Disconnect all connections from the output terminals Ensure that the output terminals are not connected to any loads Turn on the U2722A U2723A On the application panel select Tools gt Self Test If the self test fails an error is recorded in the instrument error queue Use the SYSTem ERRor query from the remote interface see the Agilent U2722A U2723A USB Modular Source Measure Units Programmer s Reference A list of the possible self test errors is given on page 58 e If repair is required contact an Agilent Service Center e If all tests pass you have a high confidence 90 that the instrument is operational Self calibration To perform a self c
5. A parallel connection is used to increase the output current Connect two or more of the outputs in parallel as in Figure 2 14 For a parallel connection the output current is the sum of the currents of the individual output The voltage is from any of the outputs Each of the individual outputs must be adjusted to obtain the total output current Output 1 Output 2 Output 3 SENSE OUTPUT GUARD OUTPUT SENSE SENSE OUTPUT GUARD OUTPUT SENSE SENSE OUTPUT GUARD OUTPUT SENSE T Positive terminal of the device under test Negative terminal of the device under test Figure 2 14 U2722A U2723A outputs connected in parallel Ensure that the voltage when source current or the current when source voltage is not clamped e Preferably both are at the same voltage range 50 U2722A U2723A User s Guide Operation and Features 2 Memory List The U2723A USB Modular Source Measure Unit contains an additional memory list feature Each channel in the U2723A USB Modular Source Measure Unit is allocated two memory list each capable of storing up to 200 commands and results individually Once the commands are loaded into the active memory and the list is executed the stored commands at each memory point is executed while the measurement results obtained are automatically stored at the result buffer This eliminates several processes in the command execution such as transferrin
6. Figure 2 7 Source current positive operating boundaries Figure 2 8 shows the operation with different resistive loads which are 1 kQ and 100 Q respectively In these examples the U2722A U2723A is having a source current of 20 mA and an input protection voltage of 15 V U2722A U2723A User s Guide 37 2 Operation and Features Input Protection Voltage line Input Protection Voltage line 15V 15V Load line with R 500 Q Coac dine aithi 10 V R 1kQ V meter Veter Source Current Source Current line line l source 20 mA Isource 15 mA 20 mA Vineter source X H lsource V meter R 20 mA x500 Q 15V 1kQ 10V 15mA A Normal source current mode operation B Crossover to source current mode operation Figure 2 8 Source current operation In Figure 2 8 A the U2722A U2723A is having a source current of 20 mA to a 500 Q load and it is measuring 10 V As long as the DUT load line intersects the source current line it will be in source current mode and the current will maintain at 20 mA However in Figure 2 8 B it shows that when the resistance of the DUT increases to 1 KQ the DUT load line intersects the input protection voltage line This forces the U2722A U2723A to go into source voltage mode Since the voltage setting is clamped at 15 V and the U2722A U2723A cannot operate out of the boundary the current then changes to 15 mA instead 38 U2722A U2723A User s Guide Operation and Features 2 Channel control
7. 1 This command stores the set current range to 120 mA command into the active memory list of channel 1 This command stores the set current limit to 120 mA command into the active memory list of channel 1 This command stores the drive voltage 20 V command into the active memory list of channel 1 55 2 56 Operation and Features gt SOUR gt SOUR gt SOUR gt SOUR gt SOUR MEM OUTP ON 1 MEM CURR MEAS 1 MEM LIST STOR 1 TRIG STRG MEM ARM 1 TRAN 1 This command stores the set output on command into the active memory list of channel 1 This command stores the measure current command into the active memory list of channel 1 This command stores all commands from the active memory list of channel 1 into the nonvolatile memory This command can be omitted if this operation is not required This command configures the backplane trigger to star trigger This command sets the arm type of channel 1 to the memory list arm This command arms channel 1 Execute commands from memory list using the remote trigger command Commands from the memory list can be executed by sending the remote trigger command There will be some small time delay between the channels if two or three channels are triggered by the remote command at the same time The channel execution sequence will start in the order of channel 1 channel 2 and ch
8. 2 2 Table 4 1 Table 4 2 U2722A U2723A User s Guide List of Tables SSI connector pin description 14 Type of commands that can be saved into the memory list 52 Time delay set for each range when auto delay is enabled 54 List of system related return codes 58 Time out settings 60 XV List of Tables XVI U2722A U2723A User s Guide U2722A U2723A USB Modular Source Measure Units n User s Guide Getting Started a N Introduction 2 Product ataGlance 4 Product outlook 4 Product Dimensions 7 Dimensions without bumpers 7 Dimensions with bumpers 8 Standard Shipped Items 9 Inspection and Maintenance 10 Initial inspection 10 Electrical check 10 Ventilation 10 General maintenance 11 Installation and Configuration 12 Instrument Configuration 13 Cable Installation 15 Chassis Installation 17 P as ata e e 1 20 This chapter provides an overview of the U2722A U2723A USB Modular Source Measure Units which includes the product outlook product dimensions and product layout This chapter also contains instructions on how to install and configure the U2722A U2723A ce Agilent Technologies 1 1 Getting Started Introduction The Agilent U2722A U2723A USB Modular Source Measure Units SMU can operate as a standalone or modular unit when used in a chassis The U2722A U2723A has three outputs The voltage range is 20 V to 20 V whereas the maximum current output per channel is 120 mA The U272
9. Agilent 10 Libraries U2722A U2723A User s Guide Declaration of Conformity DoC The Declaration of Conformity DoC for this instrument is available on the Web site You can search the DoC by its product model or description http regulations corporate agilent com DoC search htm If you are unable to search for the respective DoC please contact your local Agilent representative U2722A U2723A User s Guide IX U2722A U2723A User s Guide Contents Getting Started Introduction 2 Product ataGlance 4 Product outlook 4 Product Dimensions 7 Dimensions without bumpers 7 Dimensions with bumpers 8 Standard Shipped Items 9 Inspection and Maintenance 10 Initial inspection 10 Electrical check 10 Ventilation 10 General maintenance 11 Installation and Configuration 12 Instrument Configuration 13 Cable Installation 15 Chassis Installation 17 Operation and Features Power Up 30 Sourcing and Measurement 31 Source voltage operation 32 Source current operation 36 Channel control using SCPI commands Remote sense and guard 41 Making measurements 44 U2722A U2723A User s Guide 39 Table of Contents Xl Table of Contents System Related Operation 47 Self test 47 Self calibration 47 Error conditions 48 SCPI commands for system related tasks 48 Extending the Output Power 49 Series connections 49 Parallel connections 50 Memory List 51 Memory list configuration 51 Memory list commands storing and restoring 52
10. I Fail Source V I 274 Fail Source Limit V I Fail Source V I Fail Source V I 288 Pass Fail Source Limit V I Fail Source V I 289 Fail Source V I Fail Source Limit V I Fail Source V I 290 Fail Source Limit V I Fail Source Limit V I Fail Source V I 512 Pass Pass Fail Source Limit V I 513 Fail Source V I Pass Fail Source Limit V I 514 Fail Source Limit V I Pass Fail Source Limit V I 528 Pass Fail Source V I Fail Source Limit V I 529 Fail Source V I Fail Source V I Fail Source Limit V I 58 U2722A U2723A User s Guide Appendixes 4 Table 4 1 List of system related return codes continued Code description Return code Channel 1 Channel 2 Channel 3 530 Fail Source Limit V I Fail Source Fail Source Limit V I 544 Pass Fail Source Limit V I Fail Source Limit V I 545 Fail Source Fail Source Limit V I Fail Source Limit V I 546 Fail Source Limit V I Fail Source Limit V I Fail Source Limit V I U2722A U2723A User s Guide 59 4 Appendixes Appendix B Time out Settings The following procedure provides the instructions on how to set the time out value in the Agilent IO Libraries 1 To launch your Agilent Connection Expert go to Start gt All Programs gt Agilent 10 Libraries Suite gt Agilent Connection Expert On the Instrument 0 on this PC panel select your device in the USB expanded list and right click Select Send Commands To This Instrument and the Agilent Interactive 10 window will appear Go to
11. affected by the single delay while the other source actions will take effect from the global delay You can use these programmable delays to perform an even or uneven sweep U2722A U2723A User s Guide 53 2 54 Operation and Features Table 2 2 Time delay set for each range when auto delay is enabled Auto delay ms l range Source V Source 2V range 20 V range 2V range 20 V range 1 uA 10 10 20 20 10 uA 4 4 20 20 100 uA 0 8 0 8 20 20 1 mA 0 5 0 5 1 1 10 mA 0 5 0 5 1 1 120 mA 0 5 0 5 1 1 Memory list commands execution Since each channel runs independently if one channel is executing commands from its active memory list the other channels will remain in idle state When a channel is busy executing the active memory list commands any command sent to this channel will be ignored by the instrument There are two ways to execute the commands in the active memory list through an external trigger or a remote trigger command Execute commands from memory list using an external trigger To perform an external triggering the U2723A USB Modular Source Measure Unit must be slotted into a U2781A chassis Next the channel needs to be configured and armed An external trigger pulse is sent to the backplane of the chassis to trigger the channel and the channel will start to execute commands from the memory list when trigger signal is received If the channels are armed and triggered at the same time they will run in paralle
12. maximum current 2 Measurements obtained are per default bandwidth setting Noise 10 Hz to 20 MHz Peak peak Voltage range Current range 1uA 10 uA 100 uA 1mA 10 mA 120 mA 2V 50 mV 50 mV 50 mV 50 mV 30 mV 30 mV 20 V 50 mV 50 mV 50 mV 50 mV 30 mV 30 mV 56 U2722A U2723A User s Guide Remote sense operating range Temperature coefficient Guard output resistance Output voltage overshoot of output offset Maximum sense lead resistance Voltage line regulation Voltage load regulation Current line regulation Current load regulation Programming language Recommended calibration interval Maximum input capacitance load Characteristics and Specifications 3 Ensure that the maximum voltage between the QUTPUT and SENSE OUTPUT and SENSE does not exceed 3 V Maximum change in output readback per C after a 30 minute warm up is 0 15 0 2 kQ During turn on or turn off the output plus overshoot lt 0 1 10 mV 1 MQ for rated accuracy 0 01 of range 0 01 100 uV 0 04 of range 0 04 100 pA Standard Commands for Programmable Instruments SCPI One year 10 nF 1 Measurements obtained are per default bandwidth setting All channels are isolated from the ground and from each other Isolation is 60 VDC Category I Three hours warm up time recommended e The measurement accuracy value is x 1 a x y where x accuracy specification at r
13. parallel connection 50 output voltage overshoot 57 P parallel connection See output power positive operating quadrant 34 37 power adapter See AC DC power adapter power consumption 52 power up U2722A U2723A 30 product characteristics 52 dimensions with bumper 8 dimensions without bumper 7 outlook front view 5 outlook top view 4 specifications 54 55 programming language See SCPI commands purchase items standard 9 RST 39 48 real time display 33 36 recommended calibration interval 57 relative humidity 52 62 remote interface 52 remote sensing 41 41 operating range 57 return code 58 rise fall time 56 S safety compliance 52 SCPI commands channel control 39 39 system related tasks 48 SENSe CURRent DC NPLCycles lt integer gt 1 2 3 44 SENS SWE POIN 45 SENS SWE TINT 45 SENSe VOLTage DC NPLCycles lt integer gt 1 2 3 44 series connection See output power shock and vibration 52 source current settings See current operation source voltage settings See voltage operation source Standard Commands for Programmable Instruments See SCPI commands star trigger See STAR_TRIG STAR_TRIG 14 storage compliance 52 SYST ERR 48 SYST LFREQ lt F50HZ F60HZ gt 44 T temperature coefficient 57 range See operating environment test self 47 time aperture 44 latency 44 total 45 U U2722A U2723A Installation Menu See Agilent Modul
14. the application panel choose the channel you have connected the load to set the voltage range to either 2 V or 20 V and select the current range Otherwise enable Auto Range for both voltage and current Proceed to select Source Current and click Output to enable the output The button will turn green Clicking Output again disables the output and it will turn to gray Refer to Figure 2 2 Figure 2 3 and Figure 2 4 for the details In source current mode the current values between the meter and limit modes are the same but the voltage values are not The changes you make to the voltage only set the input protection values 3 Adjust the slider for the desired output current Adjust the slider or key in the value at Drive Current for the desired output current 4 Real time display of the measured voltage and current The application display panel will show the real time values of both the voltage and current of that channel as shown in Figure 2 3 U2722A U2723A User s Guide Operation and Features 2 The positive operating quadrant of the U2722A U2723A during source current mode is as shown in Figure 2 7 The current limit load line represents the source current settings The input protection voltage load line represents the input protection voltage settings These load lines are the boundaries which the U2722A U2723A will operate within Input Protection Voltage line V Source Current line meter source
15. using SCPI commands The following SCPI commands shows a sample procedure of controlling a single channel To source voltage the following sequence must be followed a Set voltage amp current range without any particular priority in sequence b Set CURRENT limit using SOURce CURRent LIMit lt current gt 1 2 3 where lt current gt is the value in amperes c Drive VOLTAGE using SOURce VOLTage LEVel1 IMMediate AMPLitude lt voltage gt 1 2 3 where lt voltage gt is the value in volts Example 1 Set drive voltage at channel 1 gt CLS RST Resets the source to the default power on state This command can be ignored if this operation is not required gt SOUR VOLT RANG R20V 1 Sets voltage range of channel 1 to 20 V gt SOUR CURR RANG R10mA 1 Sets current range of channel 1 to 10 mA gt SOUR CURR LIM 8mA 1 Sets current range of channel 1 to 8 mA gt SOUR VOLT 5 1 Sets channel 1 to output 5 V gt OUTP ON 1 Turns on output for channel 1 gt MEAS VOLT 1 Queries the voltage for channel 1 lt 4 99 To source current the following sequence must be followed a Set voltage amp current range without any particular priority in sequence b Set VOLTAGE limit using SOURce VOLTage LIMit lt voltage gt 1 2 3 where lt voltage gt is the value in volts c Drive CURRENT using SOURce CURRent LEVel1 IMMediate AMPL
16. value Set the local delay value Enable ON or disable OFF the instrument output For more information refer to the Agilent U2722A U2723A USB Modular Source Measure Units Programmer s Reference 52 U2722A U2723A User s Guide Operation and Features 2 Memory list delay setup Generally the duration spent at each command in the memory list only consists of the time it takes to execute the commands But for source commands a source delay may be included The source delay is used to allow the source to settle before the measurement is made The total time period of the source delay can include an auto delay and or a user programmed delay Total delay time auto delay time user programmed delay time If auto delay is enabled a certain duration of delay which depends on the source and measurement range is performed Auto delay is used to ensure that there is enough rising time for the source to reach the specified level Table 2 2 shows the time delay set for each range when auto delay is enabled There are two type of user programmable source delay the global delay and single delay When the global delay is added all the subsequent source action will perform the same time period of delay When the single delay is added only the next subsequent source action will be affected while the other commands are not When the global and single delay are used together only the next subsequent source action for the single delay is
17. 0 if the test pass else it returns a 1 if it fails Returns the error number and its corresponding message string from the error queue U2722A U2723A User s Guide Operation and Features 2 Extending the Output Power The U2722A U2723A is equipped with three dedicated channels of up to 20 V and 120 mA per channel Series connections To increase the output voltage tie two or more of the outputs in series as shown in Figure 2 13 This is to obtain a higher voltage than that available from a single output Series connected outputs can be operated with one load across the connected outputs or with a separate load for each output When a series connection is used the output voltage is the sum of the voltages of the individual output The current is the current of any one output Each of the individual outputs must be adjusted to obtain the total output voltage Output 1 Output 2 Output 3 SENSE OUTPUT GUARD OUTPUT SENSE SENSE OUTPUT GUARD OUTPUT SENSE SENSE OUTPUT GUARD OUTPUT SENSE Positive terminal of the device under test Negative terminal of the device under test Figure 2 13 U2722A U2723A outputs connected in series Ensure that the voltage when source current or the current when source voltage is not clamped e Preferably both are at the same current range U2722A U2723A User s Guide 49 2 Operation and Features Parallel connections
18. 1 120 mA command into the active memory list of channel 1 gt SOUR MEM VOLT LIM 20 This command stores the set voltage limit to 1 20 V command into the active memory list of channel 1 gt SOUR MEM CURR SOUR 0 12 This command stores the drive current to 1 U2722A U2723A User s Guide 120 mA command into the active memory list of channel 1 57 2 Operation and Features gt SOUR MEM OUTP ON 1 This command stores the set output on command into the active memory list of channel 1 gt SOUR MEM VOLT MEAS 1 This command stores the measure voltage command into the active memory list of channel 1 gt SOUR MEM LIST STOR 1 This command stores all commands from the active memory list of channel 1 into the nonvolatile memory This command can be omitted if this operation is not required gt SOUR MEM TRIG 1 This command executes all the commands from the active memory list of channel 1 1 When the measurement results reaches 200 the next result will wrap back and replace the first result at the buffer 2 When the last executing command in the memory list is to change the source range this command will not take effect at the output until subsequent source command is executed 3 When a command is stored into the memory list the active voltage and current range at that time is stored as well If a command in the memory list is executed these ranges will be restored t
19. 2722A U2723A can only be operated via the USB interface Before you can control the U2722A U2723A you need to install the hardware driver and the IO Libraries Suite 14 2 or higher Both of these are included when you purchase the U2722A U2723A Refer to the Agilent USB Modular Products and Systems Quick Start Guide for the installation procedure On the front panel of the U2722A U2723A there are two LED indicators Refer to Product outlook on page 4 Power indicator lights up once the U2722A U2723A is powered up It will blink if there is a system error USB indicator will only blink when there is data exchange activity between the U2722A U2723A and the PC U2722A U2723A User s Guide Operation and Features 2 Sourcing and Measurement The fundamental concepts of the U2722A U2723A are as shown in Figure 2 1 When programmed to source voltage mode the ammeter meter is connected in series with the voltage source Vsource and the output If the U2722A U2723A is programmed to source current mode the voltmeter V meter is connected across the current source Isource and the output I meter Vsource I source Figure 2 1 U2722A U2723A fundamental concepts U2722A U2723A User s Guide 31 2 32 Operation and Features Source voltage operation To set up the U2722A U2723A for source voltage operation proceed as follows Agilent Measurement Manager operation 1 Connect a load to the output terminals
20. 2A U2723A is controlled remotely over a USB interface via the Agilent Measurement Manager software The U2722A U2723A can also be programmed using the provided drivers or via SCPI commands The U2722A U2723A has the following features e voltage source or current source operation e measurement capability for low current down to nA levels e high resolution current setting for the low current range at 100 pA The U2722A U2723A has the following capabilities e voltage and current programming readback e programming syntax error detection e user calibration and self test capability U2722A U2723A User s Guide Getting Started 1 U2723A USB Modular Source Measure Unit The U2723A USB Modular Source Measure Unit has the following features and capabilities in additional to the U2722A USB Modular Source Measure Unit e embedded test script able to support three channels with coherent source and measurement capabilities e IV Curve application support in the Agilent Measurement Manager software e Increased faster rise fall time WARNING Floating the U2722A U2723A output more than 60 VDC from the chassis presents an electric shock hazard to the operator Do not float the outputs more than 60 VDC when uninsulated sense wires are used to connect the OUTPUT to the SENSE and the OUTPUT to the SENSE terminals of the unit U2722A U2723A User s Guide 3 1 Getting Started Product at a Glance Product outlook Top view
21. A for service attach a tag identifying the owner and model number Also include a brief description of the problem Electrical check The U2722A U2723A USB Modular Source Measure Units Service Guide will provide the complete verification procedure The procedure will verify to a high level of confidence that the U2722A U2723A is operating according to its specifications Ventilation The U2722A U2723A can operate within the temperature range of 0 C to 50 C A fan cools the U2722A U2723A by drawing and exhausting air through the sides and rear lh Your U2722A U2723A must be installed in a location that allows sufficient space at the sides and rear of the U2722A U2723A for adequate air circulation For the use of your U2722A U2723A in the U2781A instrument chassis it comes with two cooling fans that help to improve the air circulation 1 The U2723A USB Modular Source Measure Unit comes with two cooling fans one located at the side the other located at the rear U2722A U2723A User s Guide Getting Started 1 General maintenance Any repair that is not covered in your modular product manuals should only be performed by qualified personnel 1 Power off your module and remove the power cord and I O cable from your device 2 Remove your module from the bumper casing Shake out any dirt that may have accumulated on the module 4 Wipe your module with a dry cloth and install the bumper back in place U2722A U2723A Us
22. Agilent U2722A U2723A USB Modular Source Measure Units User s Guide 2 Agilent Technologies Notices Agilent Technologies Inc 2009 2011 No part of this manual may be reproduced in any form or by any means including elec tronic storage and retrieval or translation into a foreign language without prior agree ment and written consent from Agilent Technologies Inc as governed by United States and international copyright laws Manual Part Number U2722 90011 Edition Fifith Edition October 25 2011 Agilent Technologies Inc 5301 Stevens Creek Blvd Santa Clara CA 95051 USA Warranty The material contained in this docu ment is provided as is and is sub ject to being changed without notice in future editions Further to the max imum extent permitted by applicable law Agilent disclaims all warranties either express or implied with regard to this manual and any information contained herein including but not limited to the implied warranties of merchantability and fitness for a par ticular purpose Agilent shall not be liable for errors or for incidental or consequential damages in connec tion with the furnishing use or per formance of this document or of any information contained herein Should Agilent and the user have a separate written agreement with warranty terms covering the material in this document that conflict with these terms the warranty terms in the sep arate agreement
23. Interactive 10 gt Options and the Options dialog box will appear Configure the time out value based on the table provided below Table 4 2 Time out settings Points Tint ms Time out range ms 1 to 100 Std 10 5000 1 to 10 101 to 32767 Assign 110 of t 1 to 50 Std 10 5000 11 of 50 51 to 32767 Assign 120 of t 1 to 10 Std 10 5000 51 to 100 11 to 32767 Assign 120 of t 1to5 Std 10 5000 101 to 500 6 to 500 Assign 130 of t 501 to 32767 Assign 110 of t 1 to 500 Assign 310 of t 501 to 1000 501 to 32767 Assign 120 of t 1 to 500 Assign 310 of t 1001 to 4096 501 to 32767 Assign 110 of t 60 Expected time t Points x Tint e The Points is set using the SENSe SW the Tint is set using the 21 Eep POINts command and ENSe SWEep TINTerval command U2722A U2723A User s Guide Index A Agilent Automation Ready CD ROM 9 10 Libraries Suite 9 U27722A USB Modular SMU 2 10 U2781A USB Modular Instrument Chassis 14 Agilent Measurement Manager operations making measurements 44 44 45 46 operations self calibration 47 operations self test 47 ammeter 31 aperture time See time aperture C CAL 48 CLS 39 48 calibration self 47 channel control SCPI 39 39 configuration connector pins 14 instrument 13 14 current operation source input protection voltage settings 36 37 positive operating quadrant 37 source current settings 36 36 37 37 38 co
24. Memory list delay setup 53 Memory list commands execution 54 Memory list commands execution state 58 3 Characteristics and Specifications Product Characteristics 52 Product Specifications 54 4 Appendixes Appendix A List of Self Test Return Codes 58 Appendix B Time out Settings 60 XII U2722A U2723A User s Guide List of Figures Figure 1 1 Figure 1 2 Figure 2 1 Figure 2 2 Figure 2 3 Figure 2 4 Figure 2 5 Figure 2 6 Figure 2 7 Figure 2 8 Figure 2 9 Figure 2 10 Figure 2 11 Figure 2 12 Figure 2 13 Figure 2 14 Figure 2 15 Figure 2 16 U2722A U2723A User s Guide List of Figures Output connectors 13 55 pin backplane connector pin configuration 14 U2722A U2723A fundamental concepts 31 Panel view of the Agilent Measurement Manager 32 Turning on the U2722A U2723A 33 Turning off the U2722A U2723A 33 Source voltage positive operating boundaries 34 Source voltage operation 35 Source current positive operating boundaries 37 Source current operation 38 Localsense connection 41 Remote sense connection 42 Guarded connection 43 Commands that control measurement time 45 U2722A U2723A outputs connected in series 49 U2722A U2723A outputs connected in parallel 50 Channel state and Status Operation Condition register bit for external trigger 59 Channel state and Status Operation Condition register bit for remote trigger 59 XIII List of Figures XIV U2722A U2723A User s Guide List of Tables Table 1 1 Table 2 1 Table
25. alibration proceed as follows Agilent Measurement Manager operation Disconnect all connections from the output terminals Unplug any cables connected to the U2722A U2723A before performing the self calibration to prevent the occurrence of process failure On the application panel select Tools gt Self Calibration It is recommended that the source is powered up for at least 20 minutes before performing the self calibration U2722A U2723A User s Guide 47 2 Operation and Features Error conditions A record of up to 20 errors can be stored in the U2722A U2723A s error queue Refer to the programming guide for more information on the error messages Agilent Measurement Manager operation A message box will appear once an error occurs while operating the U2722A U2723A using the Agilent Measurement Manager SCPI commands for system related tasks The following examples show the SCPI commands for performing certain system related tasks Example 3 Performing system related tasks gt CLS RST gt TST gt CAL lt 0 gt SYST ERR lt 0 No Error 48 Resets the source to the default power on state This command can be ignored if this operation is not required Executes the self test Returns a 0 if the test pass else it returns other numbers in correspond with the failure refer to Appendix A List of Self Test Return Codes on page 58 Executes the self calibration Returns a
26. annel 3 U2722A U2723A User s Guide Example 2 Operation and Features 2 This example stores the source current and measure voltage commands into the active memory list memory list 1 for channel 1 and executes them when a remote trigger command is received To perform the function above follow the sequence below Select an active memory list Clear Store a b c d Store e Store f Store g Store h Store the content of the active memory list the set voltage range command into the active memory list the set current range command into the active memory list the set voltage limit command into the active memory list the drive current command into the active memory list the set output on command into the active memory list the measure voltage command into the active memory list i Trigger the execution of commands in the active memory list gt SOUR MEM LIST 1 1 This command selects memory list 1 as the active memory list for channel 1 This command can be omitted if the default active memory list has not been changed gt SOUR MEM LIST CLE 1 This command clears all the content in the active memory list of channel 1 gt SOUR MEM VOLT RANG R20V This command stores the set voltage range to 1 20 V command into the active memory list of channel 1 gt SOUR MEM CURR RANG This command stores the set current range to R120mA
27. ar Products Installation Menu V ventilation 10 voltage programming accuracy 54 programming resolution 54 readback accuracy 54 readback resolution 54 voltage operation source input protection current settings 33 34 positive operating quadrant 34 source voltage settings 32 32 33 34 34 voltmeter 31 Ww Windows 2000 Professional See operating system Home Edition See operating system Vista See operating system XP Professional See operating system U2722A U2723A User s Guide Index U2722A U2723A User s Guide 63 www agilent com Contact us To obtain service warranty or technical assistance contact us at the following phone or fax numbers United States tel 800 829 4444 fax 800 829 4433 Canada tel 877 8944414 fax 800 746 4866 China tel 800 8100189 fax 800 820 2816 Europe tel 31 20 547 2111 Japan tel 81 426 56 7832 fax 81 426 56 7840 Korea tel 080 769 0800 fax 080 769 0900 Latin America tel 305 269 7500 Taiwan tel 0800047 866 fax 0800 286 331 Other Asia Pacific Countries tel 65 6375 8100 fax 65 6755 0042 Or visit Agilent World Wide Web at www agilent com find assist Product specifications and descriptions in this document are subject to change without notice Always refer to Agilent Web site for the latest revision Agilent Technologies Inc 2009 2011 Fifth Edition October 25 2011 U2722 90011 ee Agilen
28. at vary or have significant lead resistance It has no effect in source current mode SENSE OUTPUT GUARD OUTPUT SENSE Figure 2 9 Local sense connection U2722A U2723A User s Guide 41 2 Operation and Features SENSE OUTPUT OUTPUT SENSE Figure 2 10 Remote sense connection Guard To perform low current measurement it is important to enclose the OUTPUT and SENSE lines with the potential of the GUARD terminal as far as possible This is illustrated in Figure 2 11 Use coaxial cables for such connections to improve the shielding The potential of the GUARD terminal is the same as the OUTPUT and SENSE terminal voltage By using GUARD there is no potential difference between the OUTPUT and SENSE lines and the GUARD line Therefore there will not be any leakage current flowing from either the OUTPUT and SENSE lines The leakage current from the GUARD does not affect the measurement results because it does not flow into the Ineter 42 U2722A U2723A User s Guide Operation and Features 2 Coaxial cables SENSE OUTPUT GUARD OUTPUT SENSE Figure 2 11 Guarded connection WARNING GUARD terminal potential is equal to the output CAUTION Never connect the GUARD terminal to any other output including circuit common chassis ground or the GUARD terminal of any other unit Doing so may result in damage to the unit U2722A U2723A User s Guide 43 2 44 Operation and Fea
29. ating systems only U2722A U2723A User s Guide 53 3 Characteristics and Specifications Product Specifications General U2722A U2723A Number of outputs 3 Output ratings at 0 C to 50 C Voltage 20 V to 20 V Current 120 mA to 120 mA U2722A USB Modular Source Measure Unit performance specifications Range Accuracy Resolution Voltage programming 2V 0 075 1 5 mV 0 1 mV 12 months at 25 C 3 C of output offset 20V 0 05 10 mV 1 mV 1yA 0 085 0 85 nA 100 pA 10 uA 0 085 8 5 nA 1nA Current programming 100 uA 0 075 75 nA 10 nA 12 months at 25 C 3 C of output offset 1 mA 0 075 750 nA 100 nA 10 mA 0 075 7 5 uA 1 uA 120 mA 0 1 100 uA 20 uA Voltage readback 2V 0 075 1 5 mV 0 1 mV 12 months over USB with respect to the actual S output at 25 C 3 C of output offset 20V 0 05 10 mV T mV TT uA 0 085 0 85 nA 100 pA 10 uA 0 085 8 5 nA 1nA Current readback 100 uA 0 075 75 nA 10 nA 12 months over USB with respect to the actual gt output at 25 C 3 C of output offset 1mA 0 075 750 nA 100 nA 10mA 0 075 7 5 uA 1 uA 120 mA 0 1 100 uA 20 uA 1 Accuracy measurements are based on NPLC 10 54 U2722A U2723A User s Guide Characteristics and Specifications 3 U2723A USB Modular Source Measure Unit performance specifications Range Accuracy Resolut
30. d The input protection current settings represents the limit value 3 Adjust the slider for the desired output voltage Adjust the slider or key in the desired output voltage value at the Drive Voltage text box 4 Real time display of measured voltage and current The application display panel will show the real time values of both the voltage and current U2722A U2723A User s Guide 33 2 Operation and Features The positive operating quadrant of the U2722A U2723A during source voltage mode is as shown in Figure 2 5 The input protection current line represents the input protection current settings The source voltage line represents the source voltage settings These lines are the boundaries that the U2722A U2723A will operate within Input Protection Current line Source Voltage I meter line Vsource Figure 2 5 Source voltage positive operating boundaries Figure 2 6 shows the operation with different resistive loads which are 1 KQ and 100 Q respectively In these examples the U2722A U2723A is having a source voltage of 15 V and an input protection current of 50 mA 34 U2722A U2723A User s Guide Operation and Features 50 mA meter 15 mA meter Input Protection Current line Source Voltage line p gt Load line with R 1kQ Ne V 15 V source Vsource R 15V 1kQ 15 mA A Normal source voltage mode operation Input Protection Current line Sourc
31. devicel POWER CONSUMPTION e 12 VDC 3 A maximum Isolated ELV power source OPERATING ENVIRONMENT Operating temperature from 0 C to 50 C e Relative humidity at 20 to 85 RH non condensing Altitude up to 2000 meters e Pollution degree 2 For indoor use only STORAGE COMPLIANCE 20 C to 70 C e Relative humidity at 5 to 90 RH non condensing SAFETY COMPLIANCE Certified with IEC 61010 1 2001 EN61010 1 2001 2nd Edition Canada CAN CSA C22 2 No 61010 1 04 USA ANSI UL 61010 1 2004 EMC COMPLIANCE IEC 61326 1 2005 EN61326 1 2006 e Canada ICES 001 2004 Australia New Zealand AS NZS CISPR11 2004 SHOCK AND VIBRATION Tested to IEC EN 60068 2 1 0 CONNECTOR Output connectors DIMENSIONS W x D x H 120 00 x 183 00 x 66 00 mm with bumpers 105 00 x 175 00 x 50 00 mm without bumpers U2722A U2723A User s Guide Characteristics and Specifications 3 WEIGHT 700 g with bumpers 650 g without bumpers WARRANTY Please refer to http www agilent com go warranty_terms One year for the product Three months for the product s standard accessories unless otherwise specified Please take note that for the product the warranty does not cover Damage from contamination Normal wear and tear of mechanical components Manuals 1 For remote connections using Agilent E5813A refer to Chapter 1 2 Compatible with Microsoft Windows oper
32. e Voltage line Load line with R 100 Q BV Vsource 15V Vsource meter X R bU mA x100 Q 5V B Crossover to source current mode operation Figure 2 6 Source voltage operation In Figure 2 6 A the U2722A U2723A is having a source voltage of 15 V to a 1 kQ load and it is measuring 15 mA As long as the DUT load line intersects the source voltage line it will be in source voltage mode and the voltage will maintain at 15 V However in Figure 2 6 B it shows that when the resistance of the load decreases to 100 Q the load line intersects the input protection current line This forces the U2722A U2723A to go into source current mode Since the input protection current setting is set at 50 mA and the U2722A U2723A cannot operate out of the boundary the voltage changes to 5 V instead U2722A U2723A User s Guide 2 36 Operation and Features Source current operation To set up the U2722A U2723A for source current operation proceed as follows Agilent Measurement Manager operation 1 Connect a load to the output terminals With power off connect a load to the OUTPUT and OUTPUT output terminals of any channel 2 Turn on the U2722A U2723A The U2722A U2723A will go into a power on or reset state the output is disabled Ensure that the USB interface has already been connected between the U2722A U2723A and PC Load the Agilent Measurement Manager software to control the U2722A U2723A remotely On
33. ected VBUS USB bus power sensing input USB_D USB_D USB differential pair TRIGO TRIG7 Trigger bus 12V 12 V power with 4 A current nBPUB USB backplane input detect CLK10M 10 MHz clock source STAR_TRIG Star trigger GA0 GA1 GA2 Geographical address pin U2722A U2723A User s Guide Getting Started 1 Cable Installation This section provides the recommended procedure for connecting the cables to the connector Cable casing Gz Push the cables through the cable casing QR A K a Connector gt Then insert the cables into the cable l connector and fasten it A Push the cable casing towards the output PN S connector until it firmly envelops the rA connector U2722A U2723A User s Guide 1 Getting Started The connector should be enveloped by the cable casing as shown This figure provides the full view of the connected cables to the instrument s 16 U2722A U2723A User s Guide Getting Started 1 Chassis Installation The L Mount kit is to be installed to your U2722A U2723A module The following instructions describe the simple procedure of installing the L Mount kit and your module in the chassis 1 Unpack the L Mount kit from the packaging 2 Remove your U2722A U2723A module from the bumper casing 3 Using a Phillips screwdriver fasten the L Mount kit to your U2722A U2723A module 4 Insert your U2722A U2723A module into the U2781A chassis wit
34. er s Guide 11 1 Getting Started Installation and Configuration Follow the step by step instructions shown in the Agilent USB Modular Products and Systems Quick Start Guide to get started with the preparations and installations of your U2722A U2723A You need to install the IVI COM driver if you are going to use the U2722A U2723A with Agilent VEE Pro LabVIEW or Microsoft Visual Studio 12 U2722A U2723A User s Guide Getting Started 1 Instrument Configuration Connector configuration The U2722A U2723A is equipped with output connectors as shown in Figure 1 1 SENSE OUTPUT GUARD OUTPUT SENSE Figure 1 1 Output connectors The SENSE outputs must not be left unconnected It must be connected locally or remotely U2722A U2723A User s Guide 13 1 14 Getting Started 55 pin backplane connector pin configuration The 55 pin backplane connector is used when the U2722A U2723A module is inserted into the U2781A USB modular instrument chassis For more details refer to the Agilent U2781A USB Modular Instrument Chassis User s Guide ae ae wo we on ao oo wo oo ow oo Poe Lm ve me ve ve me ve fo ow orem es ao Te wo fr s neo ow Ta T mele l one foro om mer Tore nav vw Poe fm ve ve oe oe oe oe ava oer oe ee ee es Figure 1 2 55 pin backplane connector pin configuration Table 1 1 SSI connector pin description SSI timing signal Functionality GND Ground NC Not conn
35. etting Started Dimensions with bumpers Top view lt 120 00 mm _ gt ls O 183 00 mm Rear view IR R N U T R 66 00 mm IO sss a SE 4 KISS so d 8 U2722A U2723A User s Guide Getting Started 1 Standard Shipped Items Verify that you have received the following items with your unit If anything is missing or damaged please contact the nearest Agilent Sales Office Y 12 V 3 A AC DC adapter V Power cord Y Plug in connectors and cable casing V USB Standard A to Mini B interface cable Y L Mount kit used with the modular instrument chassis V Agilent Automation Ready CD ROM contains the Agilent IO Libraries Suite V Agilent USB Modular Products and Systems Quick Start Guide V Agilent USB Modular Products and Systems Product Reference DVD ROM V Agilent Measurement Manager Quick Reference Card Y Certificate of Calibration U2722A U2723A User s Guide 9 1 Getting Started Inspection and Maintenance 10 Initial inspection When you receive your U2722A U2723A inspect the unit for any obvious damage such as broken terminals or cracks dents and scratches on the casing that may occur during shipment If any damage is found notify the nearest Agilent Sales Office immediately The front of this manual contains the warranty information Keep the original packaging in case the U2722A U2723A has to be returned to Agilent in the future If you return the U2722A U2723
36. g commands from your PC through a USB interface checking the command syntax and converting commands to the internal codes As a result the test measurement throughput is increased and the instrument is able to function as a fast test sequencer Multiple settings can also be implemented in a sweep For example the first few commands in the memory list may source current and measure voltage the next few commands may source voltage and measure current and the last few commands may source voltage and measure current again but at a lower range This allows customization for each sweep point with specific settings instead of being tied to one set of settings for all sweep points Since two memory lists are available for each channel this allows two different test scripts to be stored and switched in a channel Memory list configuration Each channel has two memory lists When a memory list is selected all parameter settings and operations will only be based on the active list until it is switched to another list The first command in the memory list is set as the start point and the last command in the memory list is set as the end point by default However you can specify a particular command to be the start point and another to be the end point You may also set the number of times this range of commands is to be executed The default loop set is 1 and the maximum loop number is 1000 U2722A U2723A User s Guide 51 2 Operation and Fea
37. h the 55 pin backplane connector positioned at the bottom of the module 5 Once you have slotted in the module tighten the screws of the L Mount kit to secure the connection U2722A U2723A User s Guide 17 1 18 Getting Started U2722A U2723A User s Guide U2722A U2723A USB Modular Source Measure Units n User s Guide Operation and Features a Power Up 20 Sourcing and Measurement 31 Source voltage operation 32 Source current operation 36 Channel control using SCPI commands 39 Remote sense and guard 41 Making measurements 44 System Related Operation 47 Self test 47 Self calibration 47 Error conditions 48 SCPI commands for system related tasks 48 Extending the Output Power 49 Series connections 49 Parallel connections 50 Memory List 51 Memory list configuration 51 Memory list commands storing and restoring 52 Memory list delay setup 53 Memory list commands execution 54 Memory list commands execution state 58 P as ata e e 2 20 This chapter describes the source voltage and source current operation mode of the U2722A U2723A USB Modular Source Measure Units It also explains the importance of remote sense and guarding when performing low current measurements There is a section that provides information on extending the U2722A U2723A output power TL Agilent Technologies 29 2 Operation and Features Power Up 30 Take note of the following when you power up the U2722A U2723A The U
38. ion Voltage programming 2V 0 075 1 5 mV 0 1 mV 12 months at 23 C 5 C of output offset 20V 0 05 10 mV 1 mV 1uA 0 085 0 85 nA 100 pA 10 uA 0 085 8 5 nA 1nA Current programming 100 pA 0 075 75 nA 10 nA 12 months at 23 C 5 C of output offset 1mA 0 075 750 nA 100 nA 10mA 0 075 7 5 yA 1 uA 120 mA 0 1 100 uA 20 uA Voltage readback 2V 0 075 1 5 mV 0 1 mV 12 months over USB with respect to the actual output at 23 C 5 C of output offset 20V 0 05 10 mV T mV 1uA 0 085 0 85 nA 100 pA 10 uA 0 085 8 5 nA 1nA 12 months sree to the actual also ste Lat oe output at 23 C 5 C of output offset 1mA 0 075 750 nA 100 nA 10mA 0 075 7 5 uA 1 uA 120 mA 0 1 100 uA 20 uA 1 Accuracy measurements are based on NPLC 10 U2722A U2723A User s Guide 55 3 Characteristics and Specifications Performance characteristics Rise fall time ms 1yA 15 0 10 uA 5 0 U2723A USB Modular Source Measure Unit 100 WA i For resistive measurement 1mA 1 0 10mA 1 0 120 mA 1 0 1yA 170 0 10 uA 18 0 U2722A USB Modular Source Measure Unit 100 pA ae For resistive measurement 1mA 1 0 10mA 1 0 120 mA 1 0 1 Drive 50 of 1 V or 10 V output with a resistive load Rise time is from 10 to 90 of program voltage change at maximum current Fall time is from 90 to 10 of program voltage change at
39. itude lt current gt 1 2 3 where lt current gt is the value in amperes U2722A U2723A User s Guide 39 2 Operation and Features Example 2 Set drive current at channel 1 gt CLS RST Resets the source to the default power on state This command can be ignored if this operation is not required gt SOUR VOLT RANG R20V 1 Sets voltage range of channel 1 to 20 V gt SOUR CURR RANG R10mA Sets current range of channel 1 to 10 mA 1 gt SOUR VOLT LIM 10V 1 Sets voltage limit of channel 1 to 10 V gt SOUR CURR 5mA 1 Sets channel 1 to output 5 mA gt OUTP ON 1 Turns on output for channel 1 gt MEAS CURR 1 Queries the current for channel 1 lt 5 0E 03 40 U2722A U2723A User s Guide Operation and Features 2 Remote sense and guard Remote sense The U2722A U2723A has both local and remote sensing capabilities When remote sensing is applied the sense lines can be directly connected to the DUT When the U2722A U2723A is in source voltage mode remote sensing enables the voltage to be sensed at the load and it will result in better regulation If the remotely sensed voltage at the DUT is lower than the programmed voltage level the actual output voltage will be increased until the sensed voltage matches the programmed voltage This ensures that the exact programmed voltage appears at the DUT Remote sensing is especially useful in source voltage mode with load impedances th
40. l U2722A U2723A User s Guide Example 1 Operation and Features 2 This example stores the source voltage and measure current commands into the active memory list memory list 1 for channel 1 and arms it To perform the function above follow the sequence below Select an Clear the the the the the the the Store Store Store Store Store 7 2 Oo 2 ATD Store i Configure the trigger setting j Arm the channel gt SOUR MEM LIST 1 gt SOUR MEM LIST active memory list gt SOUR MEM VOLT 1 gt SOUR MEM CURR R120mA 1 gt SOUR MEM CURR 1 gt SOUR MEM VOLT 1 U2722A U2723A User s Guide RANG L M 0 12 SOUR 20 content of the active memory list set voltage range command into the active memory list set current range command into the active memory list set current limit command into the active memory list drive voltage command into the active memory list set output on command into the active memory list measure current command into the active memory list This command selects memory list 1 as the active memory list for channel 1 This command can be omitted if the default active memory list has not been changed This command clears all the content in the active memory list of channel 1 This command stores the set voltage range to 20 V command into the active memory list of channel
41. nt is classified as a Monitoring and Control Instrument product The affixed product label is as shown below Do not dispose in domestic household waste To return this unwanted instrument contact your nearest Agilent Technologies or visit www agilent com environment product for more information U2722A U2723A User s Guide Vil In This Guide Appendixes Vill Getting Started This chapter provides an overview of the U2722A U2723A USB Modular Source Measure Units which includes the product outlook product dimensions and product layout This chapter also contains instructions on how to install and configure the U2722A U2723A Operation and Features This chapter describes the source voltage and source current operation mode of the U2722A U2723A USB Modular Source Measure Units It also explains the importance of remote sense and guarding when performing low current measurements There is a section that provides information on extending the U2722A U2723A output power Characteristics and Specifications This chapter specifies the characteristics environmental conditions and specifications of the U2722A U2723A Appendix A List of Self Test Return Codes The following table contains the list of codes you will obtain when performing self test The interpretation for each code is also provided Appendix B Time out Settings The following procedure provides the instructions on how to set the time out value in the
42. ntrolling measurement samples data sampling rate 45 SENS SWE POIN 45 SENS SWE TINT 45 U2722A U2723A User s Guide current high resolution setting 2 limit load line 37 maximum output 2 programming accuracy 54 programming resolution 54 readback accuracy 54 readback resolution 54 D data sampling rate 45 DUT 35 38 41 42 E electrical check 10 EMC compliance 52 error conditions 48 F flowchart 12 G guard 13 41 42 43 high resolution current setting See current 1 0 connector 52 inspection initial 10 installation chassis 17 10 Control See 10 Libraries Suite L latency time See time latency LED indicator 30 L Mount kit 9 17 local sensing 41 M maintenance general 11 MEAS CURR 40 44 44 MEAS VOLT 39 44 44 measurement capability 2 measurement manager See Agilent Measurement Manager measurements current 42 44 controlling samples 45 46 making 44 voltage 44 memory list commands 52 commands execution 54 commands execution state 58 configuration 51 delay setup 53 Microsoft Internet Explorer See browser nBPUB 14 NC 14 61 Index 0 operating environment altitude 52 humidity 52 pollution degree 52 temperature 52 OUTP ON 1 39 output button 33 channel 32 connectors 13 36 52 current 33 36 50 number 54 terminals 32 36 47 47 voltage 33 41 44 45 49 output power extending series connection 49
43. o the active ranges Memory list commands execution state Figure 2 15 and Figure 2 16 shows the states that a channel goes through when executing commands from the memory list using the external trigger or remote trigger command and the status operation condition register bit that is involved The WTG bit set indicates that the channel is armed and waiting for trigger The DTG bit set indicates that the channel is busy and will ignore all incoming commands 58 U2722A U2723A User s Guide Operation and Features 2 Idle State mig DTG 0 DTG 0 WTG lt Executing Job State DTG 1 Figure 2 15 Channel state and Status Operation Condition register bit for external trigger Idle State waa DTG 0 WTG 0 Executing Job State DTG 1 Figure 2 16 Channel state and Status Operation Condition register bit for remote trigger U2722A U2723A User s Guide 59 2 Operation and Features 60 U2722A U2723A User s Guide U2722A U2723A USB Modular Source Measure Units L S User s Guide E CL e0 6 3 7 e Characteristics and Specifications e L Product Characteristics 52 Product Specifications 54 This chapter specifies the characteristics environmental conditions and specifications of the U2722A U2723A pr Agilent Technologies 51 3 Characteristics and Specifications Product Characteristics 52 REMOTE INTERFACE Hi Speed USB 2 0 USBTMC 488 2 Class
44. on Canada CAN CSA C22 2 No 61010 1 04 USA ANSI UL 61010 1 2004 U2722A U2723A User s Guide V Regulatory Markings CE The CE mark is a registered trademark of the European Community This CE mark shows that the product complies with all the relevant European Legal N10149 The C tick mark is a registered trademark of the Spectrum Management Agency of Australia This signifies compliance with the Australia EMC Framework Cet appareil ISM est confomre a la norme NMB 001 du Canada ISM ISA Directives regulations under the terms of the Radio Communication Act of 1992 x This instrument complies with the EES NMB 001 imdicates that this ISM WEEE Directive 2002 96 EC marking device compliesivith theCariadian requirement This affixed product label ICES NMB 001 ICES 001 indicates that you must not discard this electrical or electronic product in domestic household waste SP C US The CSA mark is a registered trademark of the Canadian Standards Association Vi U2722A U2723A User s Guide Waste Electrical and Electronic Equipment WEEE Directive 2002 96 EC This instrument complies with the WEEE Directive 2002 96 EC marking requirement This affixed product label indicates that you must not discard this electrical or electronic product in domestic household waste Product Category With reference to the equipment types in the WEEE directive Annex 1 this instrume
45. oom temperature a temperature coefficient and y temperature change for U2722A USB Modular Source Measure Unit 22 C sto 0 C 28 C to 50 C temperature change for U2723A USB Modular Source Measure Unit 18 C to 0 C 28 C to 50 C 1 Typical room temperature is measured at 23 C U2722A U2723A User s Guide 57 3 Characteristics and Specifications 58 U2722A U2723A User s Guide U2722A U2723A USB Modular Source Measure Units User s Guide Appendixes Appendix A List of Self Test Return Codes 58 Appendix B Time out Settings 60 E Agilent Technologies 57 4 Appendixes Appendix A List of Self Test Return Codes The following table contains the list of codes you will obtain when performing self test The interpretation for each code is also provided Table 4 1 List of system related return codes Return code Code description Channel 1 Channel 2 Channel 3 0 Pass Pass Pass 1 Fail Source V I Pass Pass 2 Fail Source Limit V I Pass Pass 16 Pass Fail Source V I Pass 17 Fail Source V I Fail Source V I Pass 18 Fail Source Limit V I Fail Source V I Pass 32 Pass Fail Source Limit V I Pass 33 Fail Source V I Fail Source Limit V I Pass 34 Fail Source Limit V I Fail Source Limit V I Pass 256 Pass Pass Fail Source V I 257 Fail Source V I Pass Fail Source V I 258 Fail Source Limit V I Pass Fail Source V I 272 Pass Fail Source V I Fail Source V I 273 Fail Source V I Fail Source V
46. proximately 15 ms the total time taken for the measurement to complete and return the value would be approximately 5 115 s Hence it is recommended that the time out settings for communicating with the U2722A U2723A is set to more than 5 115 s else time out error would likely occur Controlling measurement samples You can vary the number of data points in a measurement sample and the time between samples Refer to Figure 2 12 SENS SWE TINT lt time gt 1 2 3 lt q _ SENS SWE POIN lt of points gt 9112 3 gt Figure 2 12 Commands that control measurement time When the instrument is turned on and at RST the output voltage or current sampling period is calculated using the SENSe SWEep TINTerval lt integer gt 1 2 3 command and the measurement buffer size is set to a value ranging from 1 up to 4096 data points Thus the expected time taken to fill up the data points set in the data buffer is governed by the following formula Expected time t points x time interval You can vary the data sampling rate with these commands SENS SWE TINT lt sample_period gt 911213 SENS SWE POIN lt points gt 911213 U2722A U2723A User s Guide 45 2 46 Operation and Features For example to set the time interval to 40 ms per measurement with 1500 samples use the following command SENS SWE TINT 40 1 SENS SWE POIN 1500 1 Only the MEASure ARRay VOLTage DC
47. shall control Technology Licenses The hardware and or software described in this document are furnished under a license and may be used or copied only in accor dance with the terms of such license Restricted Rights Legend U S Government Restricted Rights Soft ware and technical data rights granted to the federal government include only those rights customarily provided to end user cus tomers Agilent provides this customary commercial license in Software and techni cal data pursuant to FAR 12 211 Technical Data and 12 212 Computer Software and for the Department of Defense DFARS 252 227 7015 Technical Data Commercial Items and DFARS 227 7202 3 Rights in Commercial Computer Software or Com puter Software Documentation Safety Notices CAUTION A CAUTION notice denotes a haz ard It calls attention to an operat ing procedure practice or the like that if not correctly performed or adhered to could result in damage to the product or loss of important data Do not proceed beyond a CAUTION notice until the indicated conditions are fully understood and met A WARNING notice denotes a hazard It calls attention to an operating procedure practice or the like that if not correctly per formed or adhered to could result in personal injury or death Do not proceed beyond a WARNING notice until the indicated condi tions are fully understood and met U2722A U2723A User s Guide Safety Symbols
48. t Technologies
49. tures Making measurements The U2722A U2723A has an excellent output voltage and current measurement capability All the measurements are performed by digitizing the instantaneous output voltage or current for a defined number of samples and sample interval storing the results in a buffer and then calculating the measured result The programmable parameters include the number of samples and time interval between each sample There is a trade off between the programmable parameters and the speed accuracy and stability of the measurements in the presence of noise Voltage and current measurements To measure the voltage or current for any output use the following commands MEAS VOLT lt ch gt MEAS CURR lt ch gt The result of MEAS CURR or MEAS VOLT is dependent on e NPLC setting for voltage or current SENSe VOLTage DC NPLCycles lt integer gt 1 2 3 or SENSe CURRent DC NPLCycles lt integer gt 1 2 3 where integer is from 0 to 255 s line frequency selection SYSTem LFREQuency lt F50HZ F60HZ gt 1 2 3 prior to making the measurement e latency time from many executable levels in the PC The maximum total time taken for measurements to complete if NPLC 255 and Line Frequency 50 Hz is calculated according to the following formula 255 Aperture time AELG 5ls Line frequency 50 U2722A U2723A User s Guide Operation and Features 2 However due to the latency of ap
50. tures Memory list commands storing and restoring Only 11 selected type of commands can be stored in the memory list Table 2 1 summarizes the type of commands that can be saved into the memory list Commands in the memory list can be stored in and restored from the nonvolatile memory When the U2723A USB Modular Source Measure Unit is powered up existing commands from the memory list is restored from the nonvolatile memory automatically After changing the measurement range command a clamp command should be added subsequently into the memory list Table 2 1 Type of commands that can be saved into the memory list Remote SCPI command AMM command equivalent Description SOURce MEMory CURRent LIMit SOURce MEMory CURRent MEASure SOURce MEMory CURRent SOURce SOURce MEMory CURRent RANGe SOURce MEMory VOLTage LIMit SOURce MEMory VOLTage MEASure SOURce MEMory VOLTage SOURce SOURce MEMory VOLTage RANGe SOURce MEMory SOURce DELay AUTO SOURce MEMory SOURce DELay SOURce MEMory OUTPut CurrentLimit MeasureCurrent SourceCurrent CurrentRange VoltageLimit MeasureVoltage SourceVoltage VoltageRange AutoDelay GlobalDelay LocalDelay Output Set the current limit Make a current measurement Set the drive current Set the current range Set the voltage limit Make a voltage measurement Set the drive voltage Set the voltage range Enable ON or disable OFF the auto delay mode Set the global delay
51. y the power adapter provided by the manufacturer to avoid any unexpected hazards CAUTION Electrostatic discharge ESD can cause damage to the components in the instrument and accessories The cables or wires should be connected to the plug in connectors first and covered with the cable casing prior to plugging it into the output connector to prevent ESD from occurring For more information on the cable installation refer to Cable Installation on page 15 If the device is used in a manner not specified by the manufacturer the device protection may be impaired Always use dry cloth to clean the device Do not use ethyl alcohol or any other volatile liquid to clean the device Do not permit any blockage of the ventilation holes of the device U2722A U2723A User s Guide Environmental Conditions This instrument is designed for indoor use and in an area with low condensation The table below shows the general environmental requirements for this instrument Environmental conditions Requirements Operating temperature 0 C to 50 C Operating humidity 20 to 85 RH non condensing Storage temperature 20 C to 70 C Storage humidity 5 to 90 RH non condensing The U2722A U2723A USB Modular Source Measure Units complies with the following safety and EMC requirements IEC 61326 1 2005 EN61326 1 2006 Canada ICES 001 2004 e Australia New Zealand AS NZS CISPR11 2004 IEC 61010 1 2001 EN 61010 1 2001 2nd Editi
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