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National Instruments Corporation
A-1
A
Specifications
This appendix lists the specifications for the SCXI-1112 modules. These
specifications are typical at 25
°
C unless otherwise noted.
Analog Input
Input Characteristics
Number of channels ............................... 8 differential
Input signal ranges
................................. ±
100 mV
Max working voltage
( common mode) ....................... Each input should remain
within
±
10 V of CGND
Input damage level
................................. ±
42 VAC peak or VDC
Inputs protected............................... CH<0..7>, CJSENSOR<0..7>
Transfer Characteristics
Nonlinearity ........................................... 0.005% FSR
Offset error
After calibration....................... 20
µ
V max
Before calibration .................... 100
µ
V typ
Gain error (relative to calibration reference)
After calibration....................... 0.005% of reading max
Before calibration .................... 0.1% of reading typ
Amplifier Characteristics
Input impedance
Normal powered on ........................ >1 G
Ω
Powered off..................................... 10 k
Ω
Overload.......................................... 10 k
Ω