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© National Instruments Corporation A-1 SCXI-1122 User Manual
Appendix A
Specifications
This appendix lists the specifications for the SCXI-1122. These are typical at 25° C unless
otherwise stated.
Analog Input
Input Characteristics
Number of channels 16 differential, 8 4-wire, software selectable
Input signal ranges
Module Gain Max
Module Range
1
(Software Selectable)
±10 V
0.01 ±250 VDC or Vrms
0.02 ±250 V
0.05 ±200 V
0.1 ±100 V
0.2 ±50 V
0.5 ±20 V
1 ±10 V
2 ±5 V
5 ±2 V
10 ±1 V
20 ±500 mV
50 ±200 mV
100 ±100 mV
200 ±50 mV
500 ±20 mV
1,000 ±10 mV
2,000 ±5 mV
Input coupling DC
Max working voltage Each input should remain within 480
Vrms of
(signal + common mode) ground, and within 250 Vrms of any other channel
Overvoltage protection 250 Vrms powered on, 250 V powered off
Protected terminals CH < 0..15 >, IEX+, IEX-, VEX+, VEX-
1
Vrms refers to sinusoidal waveform; V refers to DC or AC peak.