USB-2404-10 User`s Guide
Contents
1. Installing the hardware Install the MCC DAQ software before you install your board The driver needed to run your board is installed with the MCC DAQ software Therefore you need to install the MCC DAQ software before you install your board Refer to the Quick Start Guide for instructions on installing the software Be sure you are using the latest system software Before you install your USB 2404 10 run Windows Update to update your operating system with the latest USB drivers To connect the USB 2404 10 to your system turn your computer on and connect the USB cable to a USB port on your computer or to an external USB hub that is connected to your computer The USB cable provides power and communication to the USB 2404 10 When you connect the USB 2404 10 for the first time a series of Found New Hardware popup balloons Windows XP or dialogs other Windows versions open as the USB 2404 10 is detected by your computer When the last balloon or dialog closes the installation is complete The LED on the USB 2404 10 blinks steadily to indicate that the device is initialized and receiving power Caution Do not disconnect any device from the USB bus while the computer is communicating with the USB 2404 10 or you may lose data and or your ability to communicate with the device Allow the USB 2404 10 to operate for at least 30 minutes before using the device This warm up time is required to achieve the specified rated accuracy2. 60 dBFS 128 dBFS SFDR Total harmonic distortion 1 kHz 1 dBFS 99 dB 1 kHz 20 dBFS 105 dB Note 1 Full performance requires connections to a USB 2 0 Hi Speed host controller and USB 2 0 high speed hubs The maximum sample rate may be lower on USB 1 1 ports 15 USB 2404 10 User s Guide Specifications Accuracy Table 2 Analog input accuracy Measurement conditions Percent of range offset error Note 2 Percent of reading gain error Calibrated maximum 0 to 60 C 0 13 0 05 Calibrated typical 25 C 5 C 0 03 0 008 Uncalibrated maximum 1 4 0 67 0 to 60 C Uncalibrated typical 0 3 0 11 25 C 5 C Note 2 The range is equal to 10 52 V Power Table 3 Power specifications Parameter Specification Current consumption from USB 500 mA maximum Bus interface Table 4 Bus specifications Parameter Specification USB specification USB 2 0 Hi Speed mode 480 Mbps is recommended Otherwise USB 1 1 Full Speed mode 12 Mbps Environmental Table 5 Environmental specifications Parameter Specification Operating temperature range 0 to 60 C Storage temperature range 40 to 85 C Operating humidity 10 to 90 relative humidity non condensing Storage humidity 5 to 95 relative humidity non condensing Maximum altitude 2000 meters 6
3. Additional documentation Optional aCcessoLies 5 od e ee ee epe teet ep reete tee ue Unpacking the USB 2404 10 ettet ee ee Rete mre te Eee 9 Installing the SOL WADE E 10 Installing the hardw te 2s ase tree o bested ri eei rei de te tte e soviet ute 10 Calibrating the USB 2404 10 sus oie eee ot te eet a te EN e Dre e em e ett A er ee 10 Chapter 3 la lieiDnramclcqs 11 ium qe T 11 Screw terminals CHOtG CH3 eer REV RR 11 USB connectorz is une EE ee Shea tees Aces eis aa tose aa Staton Ea E Eaa E Aces a hE N h ES TS 12 Mp A A AT A A E E S 12 Strain relief slot for USB Cable ioris iieri rniii nsr oa E a EAEE EEES EEREN ERA AE 12 Hich v ltageapplicatio Snie e atte e E EAE ER ERU S E E E TE 12 Sign l Sourc connect Ons vse Leo a p e e er e o e dite aati rtg b EIAS 12 Analog animes RP ai e Rri cus laces EEE EEE EAE E EEE EES EENE TE APR Filtering eera ERNE NEE O EOE dese n B e C OR bei Passband bandwidth onie nero EO REUTERS EDI IRE OS RETE OS Stopband bandwidth ees Alias free bandwidth o ise ro eren redet e ee ire Pacem e o SO eurer ege P e e ee Pepe ree Sample rates teo etre Di EUR HENRI Lb totu re RE dere e e tee ERE RD RE Pens Chapter 4 4l M 15 ANALOG INPUL zat nde eee nte re e t tem dit fotu 15 PRCCUTAGY MD C REPRE UE AS 16 POWO E iiie tee Rp EXER ER EUR ERG E RGRU e OUO RR e RERO RUR DU pee FRE T
4. 95 to 2 21 Ib in Table 9 Screw terminal assignments Screw terminal Signal 0 CHO0 CHO IN HI 1 CHO CHO IN LO 0 CH1 CH1 IN HI 1 CH1 CH1 IN LO 0 CH2 CH2 IN HI 1 CH2 CH2 IN LO 0 CH3 CH3 IN HI 1 CH3 CH3 IN LO Accessory products Table 10 Screw terminal connector specifications ACC 102 Two position detachable screw terminal connector blocks quantity ten ACC 160 Backshell for use with the ACC 102 two position screw terminal connector blocks Provides strain relief and operator protection from high voltage signals quantity four 17 CE Declaration of Conformity Manufacturer Measurement Computing Corporation Address 10 Commerce Way Suite 1008 Norton MA 02766 USA Measurement Computing Corporation declares under sole responsibility that the product USB 2404 10 to which this declaration relates is in conformity with the relevant provisions of the following standards or other documents Category Electrical equipment for measurement control and laboratory use EC EMC Directive 2004 108 EC General Requirements EN 61326 1 2006 IEC 61326 1 2005 Emissions IEC 61326 2 1 2005 EN 55011 1990 CISPR 11 Radiated emissions Group 1 Class A EN 55011 1990 CISPR 11 Conducted emissions Group 1 Class A Immunity EN 61326 1 2006 Table 3 EC 61000 4 2 1995 Electrostatic Discharge immunity Criteria B EC
5. CH0 o L Hi Speed USB 2 0 CH1 9 Compliant CH1 O Interface DI rpm cet ee re gt bee es Fes a CH2 0 CH2 0 USB i Microcontroller CH3 O Overvoltage p ES Isolated Amplifier Prefilter i Figure 1 USB 2404 10 functional block diagram USB 2404 10 User s Guide Introducing the USB 2404 10 Software features For information on the features of InstaCal and the other software included with your USB 2404 10 refer to the Quick Start Guide that shipped with your device The Quick Start Guide is also available in PDF at www mccdaq com PDFs manuals DA Q Software Quick Start pdf Check www mccdaq com download htm for the latest software version Chapter 2 Installing the USB 2404 10 What comes with your USB 2404 10 shipment As you unpack your USB 2404 10 verify that the following components are included Hardware USB 2404 10 USB cable 2 meter length Additional documentation In addition to this hardware user s guide you should also receive the Quick Start Guide available in PDF at www mccdaq com PDFs manuals DA Q Software Quick Start pdf This booklet supplies a brief description of the software you received with your USB 2404 10 and information regarding installation of that software Please read this booklet completely before installing any software or hardware Optional accessories ACC 102 Two position screw terminal connector blocks quantity ten Additional det
6. are properly insulated from human contact Use the ACC 160 connector backshell kit to ensure that the terminals are not accessible Chapter 1 Introducing the USB 2404 10 Overview USB 2404 10 features This user s guide contains all of the information you need to connect the USB 2404 10 to your computer and to the signals you want to measure The USB 2404 10 is a USB 2 0 high speed device that is supported under popular Microsoft Windows operating systems The USB 2404 10 is fully compatible with both USB 1 1 and USB 2 0 ports The USB 2404 10 provides four channels of 24 bit simultaneous analog inputs The maximum sampling rate is 50 kS s per channel and the input voltage range is 10 V nominal An anti alias filter removes noise that may be present in the signals prior to conversion A 250 Vrms channel to channel and channel to ground isolation protects the device and computer from ground spikes and ensures a reliable data stream An on board LED indicates the status of the device Field connections are made to four 2 position detachable screw terminals Ten additional two position connectors are available with the optional ACC 102 connector kit The USB 2 0 high speed driver transfers data at rates up to 480 Mbps The USB 2404 10 is powered by the 5 volt USB supply from your computer No external power is required USB 2404 10 block diagram USB 2404 10 functions are illustrated in the block diagram shown here CH0 0
7. the names of objects on the screen such as buttons text boxes and check boxes For example 1 Insert the disk or CD and click the OK button italic text Italic text is used for the names of manuals and help topic titles and to emphasize a word or phrase For example The nstaCal installation procedure is explained in the Quick Start Guide Never touch the exposed pins or circuit connections on the board Where to find more information For additional information relevant to the operation of your hardware refer to the Documents subdirectory where you installed the MCC DAQ software C Program Files Measurement Computing DAQ by default or search for your device on our website at www mccdaq com Safety guidelines You can connect hazardous voltages to the USB 2404 10 device s screw terminals A hazardous voltage is a voltage greater than 42 4 V or 60 VDC to earth ground Take the following precautions if you connect hazardous voltages to the USB 2404 10 Caution Ensure that hazardous voltage wiring is performed only by qualified personnel adhering to local electrical standards Caution Do not mix hazardous voltage circuits and human accessible circuits on the same device Caution Make sure that devices and circuits connected to the USB 2404 10 are properly insulated from human contact Caution When device terminals are hazardous voltage LIVE gt 42 4V 60 VDC ensure that devices and circuits connected to the USB 2404 10
8. 561 679 feet Pollution degree IEC60664 2 Mechanical Table 6 Mechanical specifications Parameter Specification Dimensions 4 5 Lx5 5 Wx 1 5 H Weight 1 2 lbs 544 grams 16 USB 2404 10 User s Guide Specifications Safety voltages Table 7 Safety specifications Note 3 Parameter Conditions Specification Channel to earth ground isolation Continuous 250 Vrms Measurement Category II Note 4 Withstand 2 300 Vrms verified by a 5 sec dielectric withstand test Channel to channel isolation Continuous 250 Vrms Measurement Category II Note 4 Withstand 1390 Vrms verified by a 5 sec dielectric withstand test Note 3 Connect only voltages that are within the limits specified in this table Note 4 Measurement Category II is for measurements performed on circuits directly connected to the electrical distribution system This category refers to local level electrical distribution such as that provided by a standard wall outlet for example 115 V for US or 230 V for Europe Caution Do not connect the device to signals or use for measurements within Measurement Categories III or IV Screw terminal connectors Table 8 Screw terminal connector specifications Connector type Screw terminal Screw terminal wiring 16 to 28 AWG copper conductor wire with 7 mm 0 28 in of insulation stripped from the end Torque for screw terminals 0 22 to 0 25 N m 1
9. 61000 4 3 1995 Radiated Electromagnetic Field immunity Criteria A To maintain compliance to the standards of this declaration the following conditions must be met The host computer peripheral equipment power sources and expansion hardware must be CE compliant n All T O cables must be shielded with the shields connected to ground T O cables must be less than 3 meters 9 75 feet in length The host computer must be properly grounded Equipment must be operated in a controlled electromagnetic environment as defined by Standards EN 61326 2006 or IEC 61326 2005 Declaration of Conformity based on tests conducted by Chomerics Test Services Woburn MA 01801 USA in September 2008 Test records are outlined in Chomerics Test Report EMI5135 08 We hereby declare that the equipment specified conforms to the above Directives and Standards p 2 H wf Carl Haapaoja Director of Quality Assurance Measurement Computing Corporation 10 Commerce Way Suite 1008 Norton Massachusetts 02766 508 946 5100 Fax 508 946 9500 E mail info mccdaqg com www mccdag com
10. R 16 Bus Mtert aCe c sc tvecsesesoeci seveyareceeieshceskytaeee coal davewas enna a a a a ES SE eons 16 Environmental ora erdt get edet eed eiecit tiec e rale ted eed te edt e ede aed ees 16 Mechanical erepto Eri te e t eee eer P ree E e isa sande Penes eie er eee ERE ee ede rere ie 16 Safety VOltages SCIRE m 17 Screw terminal Connectors 4 acta e a at RR RO HERI e OR GEAR IER TE T RR ERA RARE D HORE A tees 17 Accessory products er aree ettet A aE E ave Eee GREECE RE ER e EVER Ee EU RE e Pte es ore ee a Ve ep Ee 17 Declaration of Conformity eeeeeeeeeeeiiesieeeeeeseeeee ense enne nn nnn nnn tn ania sisi a natn Rusa nasa snas asm n anna 18 Preface About this User s Guide What you will learn from this user s guide This user s guide explains how to install configure and use the USB 2404 10 and refers you to related documents available on our web site and to technical support resources Conventions in this user s guide For more information on Text presented in a box signifies additional information and helpful hints related to the subject matter you are reading Caution Shaded caution statements present information to help you avoid injuring yourself and others damaging your hardware or losing your data dii Angle brackets that enclose numbers separated by a colon signify a range of numbers such as those assigned to registers bit settings etc bold text Bold text is used for
11. USB 2404 10 USB based Analog Input Device User s Guide Fa Ww PFa MEASUREMENT AW V 449 COMPUTING A USB 2404 10 USB based Analog Input Device User s Guide Wa aw e LW Un MEASUREMENT COMPUTING Document Revision 2 November 2009 Copyright 2009 Measurement Computing Corporation Your new Measurement Computing product comes with a fantastic extra Management committed to your satisfaction Thank you for choosing a Measurement Computing product and congratulations You own the finest and you can now enjoy the protection of the most comprehensive warranties and unmatched phone tech support It s the embodiment of our mission To provide PC based data acquisition hardware and software that will save time and save money Simple installations minimize the time between setting up your system and actually making measurements We offer quick and simple access to outstanding live FREE technical support to help integrate MCC products into a DAQ system Limited Lifetime Warranty Most MCC products are covered by a limited lifetime warranty against defects in materials or workmanship for the life of the product to the original purchaser unless otherwise noted Any products found to be defective in material or workmanship will be repaired replaced with same or similar device or refunded at MCC s discretion For specific information please refer to the terms and conditions of sale Harsh Environment Program Any Measu
12. ademarks of Microsoft Corporation LabVIEW is a trademark of National Instruments CompactFlash is a registered trademark of SanDisk Corporation XBee and XBee PRO are trademarks of MaxStream Inc All other trademarks are the property of their respective owners Information furnished by Measurement Computing Corporation is believed to be accurate and reliable However no responsibility is assumed by Measurement Computing Corporation neither for its use nor for any infringements of patents or other rights of third parties which may result from its use No license is granted by implication or otherwise under any patent or copyrights of Measurement Computing Corporation All rights reserved No part of this publication may be reproduced stored in a retrieval system or transmitted in any form by any means electronic mechanical by photocopying recording or otherwise without the prior written permission of Measurement Computing Corporation Notice Measurement Computing Corporation does not authorize any Measurement Computing Corporation product for use in life support systems and or devices without prior written consent from Measurement Computing Corporation Life support devices systems are devices or systems which a are intended for surgical implantation into the body or b support or sustain life and whose failure to perform can be reasonably expected to result in injury Measurement Computing Corporation products are not designed w
13. ails are available on our web site at www mccdaq com daq accessory acc 102 aspx ACC 160 Backshell for use with the ACC 102 two position screw terminal connector blocks Provides strain relief and operator protection from high voltage signals quantity six Additional details are available on our web site at www mccdag com dagq accessory acc 160 aspx Unpacking the USB 2404 10 As with any electronic device you should take care while handling to avoid damage from static electricity Before removing the USB 2404 10 from its packaging ground yourself using a wrist strap or by simply touching the computer chassis or other grounded object to eliminate any stored static charge If your USB 2404 10 is damaged notify Measurement Computing Corporation immediately by phone fax or e mail Phone 508 946 5100 and follow the instructions for reaching Tech Support Fax 508 946 9500 to the attention of Tech Support Email techsupport mccdaq com For international customers contact your local distributor where you purchased the USB 2404 10 Click on this link www mccdaq com International to locate your distributor USB 2404 10 User s Guide Installing the USB 2404 10 Installing the software Refer to the Quick Start Guide for instructions on installing the software on the Measurement Computing Data Acquisition Software CD This booklet is available in PDF at www mccdag com PDFmanuals DAQ Software Quick Start pdf
14. connect ground referenced or floating signal sources to the USB 2404 10 Connect the positive signal of the signal source to the CH screw terminal Connect the negative signal of the signal source to the CH screw terminal The following figures show the connections between the USB 2404 10 and both a grounded signal source and a floating signal source Signal Source CH USB 2404 10 CH Figure 5 Connecting a grounded signal source 12 USB 2404 10 User s Guide Functional Details When making a ground referenced connection between the signal source and the USB 2404 10 make sure the voltage on the CH and CH connections are within the channel to earth safety voltage range Refer to the Specifications chapter for information about operating voltages and overvoltage protection Signal Source CH USB 2404 10 CH Eus An EN es Figure 6 Connecting a floating signal source Don t connect to signals or use for measurements within category Ill or IV Refer to the Safety voltages section in the Specifications chapter for more information about Measurement Categories Analog input circuitry The USB 2404 10 analog input channels are floating with respect to earth ground and to each other The incoming analog signal on each channel is conditioned buffered and then sampled by a 24 bit Delta Sigma ADC Each channel provides an independent signal path and ADC enabling you to
15. ith the components required and are not subject to the testing required to ensure a level of reliability suitable for the treatment and diagnosis of people Table of Contents Preface About this User s Guide erlitten neris eae etis enun innt o rr nemus tcd dna aada ra aman n dpud Dese ia aa rna p Aena Rer 6 What you will learn from this user s guide eeeeseeeeseeeeeeeeeeeee nenne nennen rennen enne nrenne nennen trennt 6 Conventions in this user Sguide tette Pr E EE ede P be ete d br y iie debent ee eed 6 Wher to find more information n aec oscila b a D PR RE IRI GRANT cei reo e ER rdv dde 6 Satety suldelmn s nr ER GE IR te e E ir nthe OE Rem 6 Chapter 1 Introducing the USB 2404 10 eta ctecuaccuecedes sdicenncchecanessdie tdacencuanessdsedesdsedhenezedzeddsacesseneg sobedes 7 Overview USB 2404 1 0 features 5 an atac ta cu nma in ed ce sche t e da subdues o UU RERI CE visa EX Dee E IEEE Y 7 USB 2404 10 block di grain 5 ec teet tee Rer supe e o ree qp Pere re ve egit e dedi 7 Software fe tures 4 oae deeem n eae pae iet e ea reed t eben e eT eae tee e ao 8 Chapter 2 Installing the USB 2404 10 anenai iaiaaeaia nnnn ianen aaraa iana aa nadaa aiaei 9 What comes with your USB 2404 10 shipment essseessseeeeeeeeeeeenen nennen nennen enne neen rennen enne 9 Hard Ware se P a
16. of measurements Calibrating the USB 2404 10 The USB 2404 10 is shipped fully calibrated Calibration coefficients are stored in EEPROM Return the device to Measurement Computing Corporation when calibration is required The normal calibration interval is once per year 10 Chapter 3 Functional Details Components The USB 2404 10 has the following external components Screw terminal connectors USB port LED Strain relief slot for USB cable Screw terminal connectors USB 2404 10 Figure 2 Front panel Screw terminal connections Strain relief slot for USB cable USB connector LED Figure 3 Rear panel USB connection and LED Screw terminals CHO to CH3 The USB 2404 10 has four 2 terminal detachable screw terminals for connection to four isolated analog inputs The maximum sampling rate is 50 kS s per channel and the input voltage range is 10 V nominal The channels may be sampled individually or simultaneously Signal assignments are listed in the following table Screw terminal pin assignments Screw terminal Signal CHO CHO IN HI CHO CHO IN LO CH1 CH1 IN HI CH1 CH1 IN LO CH2 CH2 IN HI CH2 CH2 IN LO CH3 CH3 IN HI Oo o 0o p o 5o CH3 CH3 IN LO Use 16 AWG to 28 AWG wires to connect signals to the device 11 USB 2404 10 User s Guide Functional Details USB connector The USB connecto
17. r provides 5 V power and communication The voltage supplied through the USB connector is system dependent and may be less than 5 V No external power supply is required LED The LED indicates the device status When connected to a USB port the LED blinks steadily to indicate that the device is initialized and receiving power Refer to the following table for the possible LED states LED States LED State device status Not lit The device is not connected to a USB port or hub Continuous single blink The device is operating normally Continuous double blink The device is connected to a USB 1 1 Full Speed port or hub which may affect performance Optimum performance requires connections to a USB 2 0 Hi Speed host controller 480 Mbps and USB 2 0 high speed hubs Strain relief slot for USB cable Use the strain relief slot to keep the USB cable from disconnecting from the device inadvertently Feed a tie wrap through the slot and secure to the USB cable when it is connected to the device High voltage applications For high voltage applications we recommend using the ACC 160 backshell to ensure that the terminals are not accessible The backshell also provides strain relief to protect the screw terminals Figure 4 Connector backshell ACC 160 accessory Additional details on this product are available on our web site at www mccdaq com daq accessory acc 160 aspx Signal source connections You can
18. rement Computing product that is damaged due to misuse or any reason may be eligible for replacement with the same or similar device for 50 of the current list price I O boards face some harsh environments some harsher than the boards are designed to withstand Contact MCC to determine your product s eligibility for this program 30 Day Money Back Guarantee Any Measurement Computing Corporation product may be returned within 30 days of purchase for a full refund of the price paid for the product being returned If you are not satisfied or chose the wrong product by mistake you do not have to keep it These warranties are in lieu of all other warranties expressed or implied including any implied warranty of merchantability or fitness for a particular application The remedies provided herein are the buyer s sole and exclusive remedies Neither Measurement Computing Corporation nor its employees shall be liable for any direct or indirect special incidental or consequential damage arising from the use of its products even if Measurement Computing Corporation has been notified in advance of the possibility of such damages HM USB 2404 10 docx 3 Trademark and Copyright Information TracerDAQ Universal Library Measurement Computing Corporation and the Measurement Computing logo are either trademarks or registered trademarks of Measurement Computing Corporation Windows Microsoft and Visual Studio are either trademarks or registered tr
19. requency kHz Figure 8 Passband response typical Stopband bandwidth The filter significantly attenuates all signals above the stopband frequency 0 547 f where f is the sample rate The filter is used primarily to prevent aliasing Therefore the stopband frequency scales precisely with the sample rate The stopband rejection 100 dB is the minimum amount of attenuation applied by the filter to all signals with frequencies within the stopband bandwidth Alias free bandwidth Any signal that appears in the alias free bandwidth of the USB 2404 10 is not an aliased artifact of signals at a higher frequency The alias free bandwidth 0 453 f is defined by the ability of the filter to reject frequencies above the stopband frequency The alias free bandwidth equals the sample rate minus the stopband frequency Sample rates A master timebase frequency fm controls the USB 2404 10 sample rate fs The internal master timebase frequency is 12 8 MHz The equation below provides the available sample rates of the USB 2404 10 fs duum where n is any integer from 1 to 31 The sample rate must keep the device within the sample rate range Refer to the Specifications chapter for more information about the sample rate range Using the internal master timebase of 12 8 MHz results in sample rates of 50 kS s 25 kS s 16 67 kS s and so on down to 1 613 kS s depending on the value of n 14 Chapter 4 Specifications All
20. sample all four channels simultaneously Figure 7 shows the circuitry for one analog input channel l CH Overvoltage Amplifier Prefilter USB 2404 10 Figure 7 Analog input circuitry for one channel Filtering The USB 2404 10 uses a combination of analog and digital filtering to provide an accurate representation of in band signals while rejecting out of band signals The filters discriminate between signals based on the frequency range or bandwidth of the signal The passband stopband and alias free bandwidths are important The USB 2404 10 represents signals within the passband frequency as quantified primarily by passband ripple and phase nonlinearity All signals within the alias free bandwidth are either unaliased signals or signals that have been filtered by at least the amount of the stopband rejection Passband bandwidth The signals within the passband bandwidth have frequency dependent gain or attenuation The small amount of variation in gain with respect to frequency is called the passband flatness The device s digital filters adjust the frequency range of the passband to match the data rate Therefore the amount of gain or attenuation at a given frequency depends on the sample rate Figure 8 shows typical passband flatness for the 50 kS s sample rate 13 USB 2404 10 User s Guide Functional Details 0 025 0 000 H p B Q Se eon m d IS 0 025 0 050 0 5 10 15 20 25 F
21. specifications are subject to change without notice Typical for the range 0 to 60 C unless otherwise noted All voltages are relative to the CH signal on each channel unless otherwise noted Analog input Table 1 Analog input specifications Parameter Conditions Specification Number of channels 4 A D converter resolution 24 bit A D converter type Delta Sigma with analog pre filtering Sampling mode Simultaneous Sample rate range f Minimum 1 613 kS s Maximum 50 kS s Note 1 Sample rates fz fu cM 2 nd n Internal master timebase fm Frequency 12 8 MHz Accuracy 100 ppm maximum Input voltage ranges CH to CH 10 V nominal 10 52 V typical 10 3 V minimum Overvoltage protection 100 V Input coupling DC Input impedance CH to CH 1 MQ Input noise 70 uV rms Gain drift 5 ppm C Offset drift 24 uVPC Post calibration gain match channel to channel 20 kHz 0 22 dB maximum Crosstalk 1 kHz 130 dB Phase mismatch channel to channel 0 075 kHz maximum Phase nonlinearity f 50kS s 0 11 maximum Input delay 38 4 f 3 us Passband frequency 0 453 f Passband flatness f lt 7 50 kS s 100 mdB maximum Stopband frequency 0 547 f Stopband rejection 100 dB Alias free bandwidth 0 453 f 3 dB pre filter bandwidth f 50 kS s 24 56 kHz Common mode rejection ratio fin 60 Hz 126 dB CMRR Spurious free dynamic range 1 kHz
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