NI 6225 Device Specifications
Contents
1. a Al 24 34 68 Al 16 Al 17 33 67 AI 25 AI 18 32 66 AI 26 Al 27 31 65 AI 19 Al 20 30 64 Al 28 Al 21 29 63 AI 29 Al 30 28 62 Al 22 Al 23 27 61 AI 31 Al 32 26 60 AI 40 Al 41 25 59 AI 33 Al 34 24 58 Al 42 Al 35 23 57 AI 43 AI GND 22 56 Al SENSE 2 Al 44 21 55 Al 36 Al 37 20 54 A145 Al 38 19 53 Al 46 Al 47 18 52 AI 39 Al 48 17 51 AI 56 Al 49 16 50 AI 57 Al 58 15 49 AI 50 AI 51 14 48 AI 59 Al 52 13 47 Al60 Al 61 12 46 AI 53 Al 54 11 45 Al 62 Al 55 10 44 AI 63 AI GND 9 43 AI GND Al 72 8 42 Al 64 Al 65 7 41 A173 Al 66 6 40 AI 74 Al 75 5 39 Al 67 Al 68 4 38 AI 76 Al 69 3 37 Al77 Al 78 2 36 AI 70 AI 71 1 35 AI 79 7 CONNECTOR 1 Al 16 79 TERMINAL 68 TERMINAL 35 Q O TERMINAL 34 TERMINAL 1 RE AI8 34 68 AIO Al 1 33 67 Al GND AI GND 32 66 Al 9 Al 10 31 65 Al2 AI3 30 64 AI GND AI GND 29 63 AI 11 Al 4 28 62 Al SENSE AI GND 27 61 AI 12 Al 13 26 60 Al5 Al 6 25 59 AL GND AI GND 24 58 Al 14 Al 15 232. r ETE S S19 alto A20 34 SII Sl 51 al 29 3 S Go A11 Edel 35 SI Sl 52 algo 4S ql A12 A22 SS Sl 53 Ai GND SS Sll 22 AIGND AIGND 37 SI Gs Arai SS S23 Aras A23 38 S S 55 ai 40 TS Sa arta A32 39 S Si 56 ara 81 ISI Ss alts A33 401 DUS 57 Al42 9 SI qs A124 A34 AIS m sa aras 10 Si S27 A25 A35 42 SII Sl 59 al 44 55 Al36 43 amp nR Sans do B EEE 131 S SI 30 NC ALI 45 S S 62 Al 46 14 S Sl 31 AOGND A38 46 SII Sl 63 al 47 15 S S 32 a01 A139 47 S Sea arse 16 IS Al48 48 S A a S S S s g g E s S S s S S rs T v sm AZ gjar Sina 66 S Sas also mA 98 KY Sl 115 PFI 9P2 1 97 S alle areo DUE 99 S amp l16 DGND 68 9 S 85 arca pio 100 Sl 117 PFI 10 P2 2 69 GS gllss ares H0 101 9 amp 118 DGND 70 S SW 87 Al 63 as 102 S 119 PFI 11 P2 3 MS glas Arano FORD 103 IS S120 DGND TS Gl 89 Al 72 BOF 10419 SI 121 PFI 12 P2 4 73 SII Sf 20 a7 PFIOP10 105 Sj Slasa DaND 74 Sl 91 AI 74 zaba A 1069 SI 123 PFI 13 P2 5 75 S qe A175 PFI 2 P1 2 107 S Sasa DGND 7 9 SW 93 Al 76 PFI 3 P1 3 08 IS 125 PFI 14 P2 6 TUS qoa A77 PFI4 P1 4 109 S Gi i26 DGND 78 9 GI 95 Al 78 PFI 5 P1 5_110 S 127 PFI 15 P2 7 SIENI PE ereere 1H ES Sa 80 9 PFI7 P17 112 S ah NC No Connect Chassis Ground Lug gt gt NI 6225 Device Specifications National Instruments 19 Figure 10 NI USB 6225 Mass Termination Pinout
3. Nominal Nominal Residual Residual Absolute Range Range Gain Offset Offset Accuracy Positive Negative Error Error Tempco Random atFull Full Full ppm of ppm of ppmof Noise c Scale Sensitivity Scale Scale Reading Range Range C uVrms uV uV 10 10 75 20 57 244 3 100 97 6 5 5 85 20 60 122 1 620 48 8 1 1 95 25 79 30 360 12 0 0 2 0 2 135 80 175 13 112 5 2 a Note Sensitivity is the smallest voltage change that can be detected It is a function of noise Gain tempco 25 ppm C Reference tempco 5 ppm C INL error 76 ppm of range 4 nicom NI 6225 Device Specifications Al Absolute Accuracy Equation AbsoluteAccuracy Reading GainError Range OffsetError NoiseUncertainity GainError ResidualAIGainError GainTempco TempChangeFromLastInternalCal ReferenceTempco TempChangeFromLastExternalCal OffsetError ResidualAIOffsetError OffsetTempco TempChangeFromLastInternalCal INLError NoiseUncertainty UM for a coverage factor of 3 o and averaging 100 points Al Absolute Accuracy Example Absolute accuracy at full scale on the analog input channels is determined using the following assumptions TempChangeFromLastExternalCal 10 C TempChangeFromLastInternalCal 1 C number of readings 100 CoverageFactor 3 o For example on the 10 V range the absolute accuracy at full scale is as follows GainError 75 ppm 25 ppm 1 5
4. Caution Do not use for measurements within Categories II III or IV a Note Measurement Categories CAT I and CAT O Other are equivalent These test and measurement circuits are not intended for direct connection to the MAINS building installations of Measurement Categories CAT II CAT III or CAT IV Environmental Operating temperature PCI PXI 0 C to 55 C USB 0 C to 45 C Storage temperature 20 C to 70 C Humidity 10 RH to 90 RH noncondensing Maximum altitude 2 000 m Pollution Degree indoor use only 2 Indoor use only Shock and Vibration PXI Only Operational shock 30 g peak half sine 11 ms pulse Tested in accordance with IEC 60068 2 27 Test profile developed in accordance with MIL PRF 28800F NI 6225 Device Specifications National Instruments 15 Random vibration Operating 5 Hz to 500 Hz 0 3 gu Nonoperating 5 Hz to 500 Hz 2 4 gj Tested in accordance with IEC 60068 2 64 Nonoperating test profile exceeds the requirements of MIL PRF 28800F Class 3 Safety This product is designed to meet the requirements of the following electrical equipment safety standards for measurement control and laboratory use EC 61010 1 EN 61010 1 UL 61010 1 CSA 61010 1 Note For UL and other safety certifications refer to the product label or the Online Product Certification section Electromagnetic Compatibility This product meets the requirements of the following EMC stan
5. 6 nicom NI 6225 Device Specifications Note Accuracies listed are valid for up to one year from the device external Table 2 AO Absolute Accuracy Nominal Nominal Residual Residual Offset Absolute Range Range Gain Error Gain Offset Tempco Accuracy Positive Negative ppm of Tempco Error ppm ppm of at Full Full Scale Full Scale Reading ppm C of Range Range C Scale uV 10 10 90 10 40 5 3 230 Reference tempco 5 ppm C INL error 128 ppm of range AO Absolute Accuracy Equation AbsoluteAccuracy OutputValue GainError Range OffsetError GainError ResidualGainError GainTempco TempChangeFromLastInternalCal ReferenceTempco TempChangeFromLastExternalCal OffsetError ResidualOffsetError AOOffsetTempco TempChangeFromLastInternalCal INLError Digital I O PFI Static Characteristics Number of channels Ground reference Direction control Pull down resistor Input voltage protection 24 total 8 P0 lt 0 7 gt 16 PFI lt 0 7 gt P1 PFI lt 8 15 gt P2 D GND Each terminal individually programmable as input or output 50 kQ typical 20 kQ minimum 20 V on up to two pins Waveform Characteristics Port 0 Only Terminals used Port sample size Waveform generation DO FIFO Waveform acquisition DI FIFO Port 0 PO lt 0 7 gt Up to 8 bits 2 047 samples 2 047 samples Stresses beyond those listed u
6. frequency division equivalent time sampling Internal base clocks External base clock frequency Base clock accuracy Inputs Routing options for inputs FIFO Data transfers PCI PXI USB Frequency Generator 80 MHz 20 MHz 0 1 MHz 0 MHz to 20 MHz 50 ppm Gate Source HW Arm Aux A B Z Up Down Any PFI RTSI PXI TRIG PXI STAR analog trigger many internal signals 2 samples Dedicated scatter gather DMA controller for each counter timer interrupts programmed I O USB Signal Stream programmed I O Number of channels Base clocks Divisors Base clock accuracy 1 10 MHz 100 kHz 1 to 16 50 ppm Output can be available on any output PFI or RTSI terminal Phase Locked Loop PLL a Note PCI PXI devices only Number of PLLs Reference signal Output of PLL 1 PXI STAR PXI CLKI10 RTSI lt 0 7 gt 80 MHz Timebase other signals derived from 80 MHz Timebase including 20 MHz and 100 kHz Timebases NI 6225 Device Specifications National Instruments 11 External Digital Triggers Source Polarity Analog input function Analog output function Counter timer function Digital waveform generation DO function Digital waveform acquisition DI function Any PFI RTSI PXI TRIG PXI STAR Software selectable for most signals Start Trigger Reference Trigger Pause Trigger Sample Clock Convert Clock Sample Clock Timebase Start Trigger Pause Trigger Sample Clock
7. DoC for additional regulatory compliance information To obtain product certifications and the DoC for this product visit ni com certification search by model number or product line and click the appropriate link in the Certification column Environmental Management Nl is committed to designing and manufacturing products in an environmentally responsible manner NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers For additional environmental information refer to the Minimize Our Environmental Impact web page at ni com environment This page contains the environmental regulations and directives with which NI complies as well as other environmental information not included in this document Waste Electrical and Electronic Equipment WEEE pd EU Customers At the end of the product life cycle all NI products must be disposed of according to local laws and regulations For more information about how to recycle NI products in your region visit ni com environment weee AFS is SIENA HE RoHS 010 HEEA National Instruments 7 fr F E E Ff I P dm F BR tb sli Fd S EY i ao RoHS KI National Instruments 7 El RoHS GAME A EP ni com environment rohs china For information about China RoHS compliance go to ni com environment rohs china NI 6225 Device Specifications Nati
8. 57 AI7 AO 0 22 56 AI GND AO 1 21 55 AO GND NC 20 54 AO GND PO 4 19 53 D GND D GND 18 52 PO O PO 1 17 51 PO 5 PO 6 16 50 D GND D GND 15 49 PO 2 5V 14 48 PO 7 D GND 13 47 PO 3 D GND 12 46 PFI 11 P2 3 PFI 0 P1 0 11 45 PFI 10 P2 2 PFI 1 P1 1 10 44 D GND D GND 9 43 PFI 2 P1 2 5V 8 42 PFI 3 P1 3 D GND 7 41 PFI 4 P1 4 PFI 5 P1 5 6 40 PFI 13 P2 5 PFI 6 P1 6 5 39 PFI 15 P2 7 D GND 4 38 PFI 7 P1 7 PFI 9 P2 1 3 37 PFI 8 P2 0 PFI 12 P2 4 2 36 D GND PFI 14 P2 6 1 35 D GND ae NC No Connect CONNECTOR 0 Al 0 15 TERMINAL 68 TERMINAL 35 9 o TERMINAL 34 TERMINAL 1 Refer to the NI Trademarks and Logo Guidelines at ni com trademarks for information on National Instruments trademarks Other product and company names mentioned herein are trademarks or trade names of their respective companies For patents covering National Instruments products technology refer to the appropriate location Help Patents in your software the patents txt file on your media or the National Instruments Patent Notice at ni com patents You can find information about end user license agreements EULAs and third party legal notices in the readme file for your NI product Refer to the Export Compliance Information at ni com legal export compliance for the National Instruments global trade compliance policy and how to obtain relevant HTS codes ECCNS and other import exp
9. includes connectors USB Mass Termination enclosure includes connectors USB OEM Weight PCI PXI USB Screw Terminal USB Mass Termination USB OEM I O connectors PCI PXI USB Screw Terminal USB Mass Termination 10 6 cm x 15 5 cm 4 2 in x 6 1 in Standard 3U PXI 26 67 cm x 17 09 cm x 4 45 cm 10 5 in x 6 73 in x 1 75 in 18 8 cm x 17 09 cm x 4 45 cm 7 4 in x 6 73 in x 1 75 in Refer to the NI USB 622x 625x 628x OEM User Guide 103 g 3 6 oz 174 g 6 1 oz 1 24 kg 2 lb 11 oz 907 g 2 lb 162 g 5 7 oz 2 68 pin VHDCI 128 screw terminals 2 68 pin SCSI USB Screw Terminal BNC screw terminal 16to 28 AWG wiring Calibration Recommended warm up time PCI PXI 15 minutes USB 30 minutes 14 nicom NI 6225 Device Specifications Calibration interval 1 year Maximum Working Voltage Maximum working voltage refers to the signal voltage plus the common mode voltage Channel to earth 11 V Measurement Category I Measurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS voltage MAINS is a hazardous live electrical supply system that powers equipment This category is for measurements of voltages from specially protected secondary circuits Such voltage measurements include signal levels special equipment limited energy parts of equipment circuits powered by regulated low voltage sources and electronics
10. DEVICE SPECIFICATIONS NI 6225 M Series Data Acquisition 16 Bit 250 kS s 80 Al 2 AO 24 DIO The following specifications are typical at 25 C unless otherwise noted For more information about the NI 6225 refer to the M Series User Manual available at ni com manuals Analog Input Number of channels ADC resolution DNL INL Sample rate Single channel maximum Multichannel maximum aggregate Minimum Timing accuracy Timing resolution Input coupling Input range Maximum working voltage for analog inputs signal common mode CMRR DC to 60 Hz Input impedance Device on AH to AI GND AI to AI GND 40 differential or 80 single ended 16 bits No missing codes guaranteed Refer to the AI Absolute Accuracy section 250 kS s 250 kS s No minimum 50 ppm of sample rate 50 ns DC 0 2 V 1 V 5 V 10 V 11 V of AI GND 92 dB gt 10 GQ in parallel with 100 pF gt 10 GQ in parallel with 100 pF c NATIONAL INSTRUMENTS Device off Alt to AI GND AI to AI GND Input bias current Crosstalk at 100 kHz Adjacent channels Non adjacent channels Small signal bandwidth 3 dB Input FIFO size Scan list memory Data transfers PCI PXI USB 8200 8200 100 pA 75 dB 90 dB 700 kHz 4 095 samples 4 095 entries DMA scatter gather interrupts programmed I O USB Signal Stream programmed I O Overvoltage protection for all analog input and sense channels Device
11. Sample Clock Timebase Gate Source HW Arm Aux A B Z Up Down Sample Clock Sample Clock Device to Device Trigger Bus PCI PXI USB source Output selections Debounce filter settings Bus Interface RTSI lt 0 7 gt 4 PXI TRIG lt 0 7 gt PXI STAR None 10 MHz Clock frequency generator output many internal signals 125 ns 6 425 ys 2 56 ms disable high and low transitions selectable per input PCI PXI USB DMA channels PCI PXT USB Signal Stream 3 3 V or 5 V signal environment USB 2 0 Hi Speed or full speed gt 6 can be used for analog input analog output digital input digital output counter timer 0 counter timer 1 4 can be used for analog input analog output counter timer 0 counter timer 1 In other sections of this document RTSI refers to RTSI lt 0 7 gt for the PCI devices or PXI TRIG lt 0 7 gt for PXI devices 5 If you are using an USB M Series device in full speed mode device performance will be lower and you will not be able to achieve maximum sample update rates 5 Operating on a full speed bus may result in lower performance 12 nicom NI 6225 Device Specifications The PXI device can be installed in PXI Express hybrid slots It cannot be used to control SCXI in PXI SCXI combo chassis Power Requirements Current draw from bus during no load condition T5V 0 02 A 3 3 V 0 25 A 12 V 0 15 A Current draw from bus during AI and AO overvoltage condi
12. dards for electrical equipment for measurement control and laboratory use EN 61326 1 IEC 61326 1 Class A emissions Basic immunity EN 55011 CISPR 11 Group 1 Class A emissions EN 55022 CISPR 22 Class A emissions EN 55024 CISPR 24 Immunity AS NZS CISPR 11 Group 1 Class A emissions AS NZS CISPR 22 Class A emissions FCC 47 CFR Part 15B Class A emissions ICES 001 Class A emissions a Note In the United States per FCC 47 CFR Class A equipment is intended for use in commercial light industrial and heavy industrial locations In Europe Canada Australia and New Zealand per CISPR 11 Class A equipment is intended for use only in heavy industrial locations Note Group 1 equipment per CISPR 11 is any industrial scientific or medical equipment that does not intentionally generate radio frequency energy for the treatment of material or inspection analysis purposes Note For EMC declarations and certifications and additional information refer to qi the Online Product Certification section 16 nicom NI 6225 Device Specifications CE Compliance C This product meets the essential requirements of applicable European Directives as follows e 2014 35 EU Low Voltage Directive safety e 2014 30 EU Electromagnetic Compatibility Directive EMC e 2011 65 EU Restriction of Hazardous Substances RoHS Online Product Certification Refer to the product Declaration of Conformity
13. l 65 Al 72 Al GND Al 55 Al 54 Al 61 Al 52 Al 51 Al 58 Al 49 Al 48 Al 47 AI 38 Al 37 Al 44 AI GND AI 35 AI 34 Al 41 AI 32 Al 23 AI 30 Al 21 Al 20 Al 27 Al 18 Al 17 Al 24 35 36 37 38 39 40 41 o x oj o 5 o w 42 o 43 o 44 45 N 46 w 47 48 a 49 o 50 Zi 51 52 o 53 N o 54 S 55 N N 56 N w 57 N R 58 m a 59 Y 60 N N 61 Y 62 m 63 w o 64 i 65 e m 66 c2 e 67 R 68 Al 79 Al 70 Al 77 Al 76 Al 67 Al 74 Al 73 Al 64 Al GND Al 63 Al 62 Al 53 Al 60 Al 59 Al 50 Al 57 AI 56 AI 39 Al 46 Al 45 AI 36 Al SENSE 2 Al 43 Al 42 Al 33 Al 40 Al 31 Al 22 Al 29 Al 28 Al 19 Al 26 Al 25 Al 16 Figure 9 NI USB 6225 Screw Terminal Pinout Al 49 Al 50 Al 51 Al 52 Al 53 Al 54 Al 55 AI GND Al 64 Al 65 Al 66 Al 67 Al 68 Al 69 AI 70 AI 71
14. nder Input voltage protection may cause permanent damage to the device NI 6225 Device Specifications National Instruments 7 DI or DO Sample Clock frequency Data transfers DI or DO Sample Clock source 0 MHz to 1 MHz system and bus activity dependent DMA scatter gather interrupts programmed I O Any PFI RTSI AI Sample or Convert Clock Ctr n Internal Output and many other signals PFI Port 1 Port 2 Functionality Functionality Timing output sources Debounce filter settings Static digital input static digital output timing input timing output Many Al AO counter DI DO timing signals 125 ns 6 425 us 2 56 ms disable high and low transitions selectable per input Recommended Operating Conditions Level Minimum Maximum Input high voltage Vy 22V 525V Input low voltage Vir ov 0 8 V Output high current log PO lt 0 7 gt 24 mA Output high current log PFI lt 0 15 gt P1 P2 16 mA Output low current Ior PO lt 0 7 gt 24 mA Output low current Ig PFI lt 0 15 gt P1 P2 16 mA Electrical Characteristics Level Minimum Maximum Positive going threshold VT 2 2 V Negative going threshold VT 0 8 V Delta VT hystersis VT VT 0 2 V Iy input low current Vin 0 V 10 pA Ig input high current Vin 5 V 250 uA 3 The digital subsystem does not have its own dedicated internal timing engi
15. ne Therefore a sample clock must be provided from another subsystem on the device or an external source 8 nicom NI6225 Device Specifications Digital I O Characteristics Figure 4 DIO Port 0 lop versus Von lon mA 157 257 55 C Vdd 4 5 V 25 C Vdd 5 0 V 0 C Vdd 5 5 V Von V Figure 5 DIO PFI Port 1 Port 2 loh versus Von lon mA 4 55 C Vdd 45V 40 gt a 7 7 25 C Vdd 5 0 V 45 4 77 0 C Vdd 5 5 V P4 50 T ii T T 2 3 4 5 Von V NI 6225 Device Specifications O National Instruments 9 Figure 6 DIO Port 0 lo versus Vg 40 35 3 30 7 253 20 3 lo mA 15 104 55 C Vdd 4 5 V 25 C Vdd 5 0 V 0 C Vdd 5 5 V 0 4 T T T 0 6 0 8 1 0 1 2 Voi V Figure 7 DIO PFI Port 1 Port 2 lj versus Va 40 35 55 C Vdd 4 5 V 25 C Vdd 5 0 V 30 0 C Vdd 5 5 V loi mA General Purpose Counters Timers Number of counter timers Resolution Counter measurements Position measurements Output applications 10 nicom NI6225 Device Specifications 2 32 bits Edge counting pulse semi period period two edge separation X1 X2 X4 quadrature encoding with Channel Z reloading two pulse encoding Pulse pulse train with dynamic updates
16. on Device off Input current during overvoltage condition 25 V for up to two AI pins 15 V for up to two AI pins 20 mA maximum AI pin Settling Time for Multichannel Measurements Accuracy full scale step all ranges 90 ppm of step 6 LSB 30 ppm of step 2 LSB 15 ppm of step 1 LSB 4 us convert interval 5 us convert interval 7 us convert interval For USB 6255 devices channel AI lt 0 15 gt crosstalk to channel AI lt 64 79 gt is 71 dB This applies to channels with 64 channel separation Example AI x and AI x 64 2 nicom NI 6225 Device Specifications Typical Performance Graphs Figure 1 Settling Error versus Time for Different Source Impedances Frequency Hz NI 6225 Device Specifications 10k ik4 72 a 2 2 5 100 E amp ee 81000 S kO u 1074 2ko 5kQ 10kQ 1 T 1 10 100 Time ms Figure 2 Al Small Signal Bandwidth 2 a 2 D D 2 g E T c 2 N kei A 8 E o z 14 T T T 1k 10k 100 k 1000 k 10000 k National Instruments 3 Figure 3 Al CMRR 120 a e a ra z o 10 V Range 5 V Range 20 77 1V Range 0 2 V Range 0 T T T 10 100 1k 10k 100 k Frequency Hz Al Absolute Accuracy a Note Accuracies listed are valid for up to one year from the device external calibration Table 1 Al Absolute Accuracy
17. onal Instruments 17 Device Pinouts Figure 8 NI PCI PXI 6225 Pinout 18 Alo AI GND AI9 Al2 Al GND Al 11 Al SENSE Al 12 AIS Al GND Al 14 Al7 Al GND AO GND AO GND D GND P0 0 PO 5 DGND PO 2 PO 7 PO 3 PFI 11 P2 3 PFI 10 P2 2 DGND PFI 2 P1 2 PFI 3 P1 3 PFI 4 P1 4 PFI 13 P2 5 PFI 15 P2 7 PFI 7 P1 7 PFI 8 P2 0 D GND D GND ri 68 34 67 33 66 32 65 31 64 30 63 29 62 28 61 27 60 26 59 25 58 24 57 23 56 22 55 21 54 20 53 19 52 18 51 17 50 16 49 15 48 14 47 13 46 12 45 11 44 10 43 o 42 41 40 39 38 37 36 35 2 w o 25 oo o Al 8 Al1 AI GND Al 10 Al3 Al GND Al4 Al GND Al 13 Al6 Al GND AI 15 AO O0 AO 1 NC PO 4 DGND PO 1 PO 6 DGND 5V DGND DGND PFI 0 P1 0 PFI 1 P1 1 D GND 45V D GND PFI 5 P1 5 PFI 6 P1 6 D GND PFI 9 P2 1 PFI 12 P2 4 PFI 14 P2 6 NC No Connect ni com TERMINAL 68 TERMINAL 34 TERMINAL 1 TERMINAL 35 NI 6225 Device Specifications CONNECTOR 0 Al 0 15 CONNECTOR 1 Al 16 79 A ge e s TERMINAL 35 TERMINAL 1 TERMINAL 34 TERMINAL 68 AI 71 AI 78 Al 69 Al 68 Al 75 Al 66 A
18. ort data NI MAKES NO EXPRESS OR IMPLIED WARRANTIES AS TO THE ACCURACY OF THE INFORMATION CONTAINED HEREIN AND SHALL NOT BE LIABLE FOR ANY ERRORS U S Government Customers The data contained in this manual was developed at private expense and is subject to the applicable limited rights and restricted data rights as set forth in FAR 52 227 14 DFAR 252 227 7014 and DFAR 252 227 7015 2015 National Instruments All rights reserved 375203B 01 Sep15
19. ppm 10 150 ppm OffsetError 20 ppm 57 ppm 1 76 ppm 153 ppm 244 WV 3 4100 AbsoluteAccuracy 10 V GainError 10 V OffsetError NoiseUncertainity 3 100 uV NoiseUncertainity 73 uV Analog Output Number of channels 2 DAC resolution 16 bits DNL 1 LSB Monotonicity 16 bit guaranteed Maximum update rate 1 channel 833 kS s 2 channels 740 kS s per channel Timing accuracy 50 ppm of sample rate Timing resolution 50 ns Output range 10 V NI 6225 Device Specifications National Instruments 5 Output coupling Output impedance Output current drive Overdrive protection Overdrive current Power on state Power off glitch Output FIFO size Data transfers Data transfers USB AO waveform modes Settling time full scale step 15 ppm 1 LSB Slew rate Glitch energy Magnitude Duration AO Absolute Accuracy DC 0 2 Q 5 mA 25 V 10 mA 20 mV 400 mV for 200 ms 8 191 samples shared among channels used DMA scatter gather interrupts programmed I O USB Signal Stream programmed I O Non periodic waveform periodic waveform regeneration mode from onboard FIFO periodic waveform regeneration from host buffer including dynamic update 6 us 15 V us 100 mV 2 6 us Absolute accuracy at full scale numbers is valid immediately following internal calibration and assumes the device is operating within 10 C of the last external calibration AS calibration
20. tion 5 V 0 02 A 3 3 V 0 25 A 12 V 0 25 A Caution USB devices must be powered with an NI offered AC adapter or a National Electric Code NEC Class 2 DC source that meets the power requirements for the device and has appropriate safety certification marks for country of use USB power supply requirements 11 to 30 VDC 20 W locking or non locking power jack with 0 080 in diameter center pin 5 16 32 thread for locking collars Current Limits Caution Exceeding the current limits may cause unpredictable behavior by the device and or PC chassis PCI 5 V terminal connector 0 1 A maximum 5 V terminal connector 1 1 A maximum PXI 5 V terminal connector 0 1 A maximum 5 V terminal connector 1 1 A maximum PO PFI P1 P2 and 5 V terminals 2 A maximum combined 7 Does not include PO PFI P1 P2 and 5 V terminals Older revisions have a self resetting fuse that opens when current exceeds this specification Newer revisions have a traditional fuse that opens when current exceeds this specification This fuse is not customer replaceable if the fuse permanently opens return the device to NI for repair NI 6225 Device Specifications National Instruments 13 USB 5 V terminal PO PFI P1 P2 and 5 V terminals combined Power supply fuse Physical Characteristics 1 A maximum 2 A maximum 24 250 V Dimensions PCI printed circuit board PXI printed circuit board USB Screw Terminal enclosure
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