Appendix A Specifications
SCXI-1125 User Manual A-6 ni.com
Normal Mode Rejection, 50/60 Hz (NMRR)
4 Hz filter enabled...........................60 dB
Crosstalk at 1kHz
Adjacent channels............................–75 dB
All other channels............................– 90 dB
Input coupling
Default.............................................DC
Using SCXI-1305 or TBX-1329 .....AC or DC
Power Consumption
+18.5 V...................................................140 mA max
– 18.5 V..................................................140 mA max
+5 V........................................................10 mA max
Output Characteristics
Output range...........................................±5.0 V
Output impedance
Multiplexed output mode................100 Ω
Parallel output mode........................330 Ω
Transfer Characteristics
Nonlinearity
All ranges.........................................0.02% of full scale range
Stability
Recommended warm-up time.................15 minutes
Offset drift..............................................± (0.42 + 250/gain) μV/ °C
Gain drift.................................................± 20 ppm/ °C typical
Calibration
External calibration interval...................1 year