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© National Instruments Corporation A-1 SCXI-1141/1142/1143 User Manual
A
Specifications
This appendix lists the specifications for the SCXI-1141/1142/1143
module. These specifications are typical at 25 °C unless otherwise noted.
Amplifier Characteristics
Number of channels ...............................8 differential
Output signal range................................ ±5 V
Channel gains (software-selectable) ......1, 2, 5, 10, 20, 50, 100
Input overvoltage protection
Powered on .....................................±30 V
Powered off.....................................±15 V
Input coupling ........................................DC (AC available with
SCXI-1304 or SCXI-1305
terminal block)
Input impedance
Powered on .....................................10 GΩ in parallel with 40 pF
Powered off.....................................2.4 kΩ
Input bias current ...................................450 pA
Input bias current
temperature coefficient ..........................0.8 pA/°C
Input offset current.................................250 pA
Common-mode rejection ratio ...............60 dB (G = 1)