© National Instruments Corporation A-1 SCXI-1121 User Manual
ASpecifications
This appendix lists the specifications for the SCXI-1121. These are
typicalat 25 °C unless otherwise stated. The operating temperature range
is 0 to 50 °C.
Analog Input
Gain (jumper-selectable)........................1, 2, 5, 10, 20, 50, 100, 200, 500,
1,000, 2,000
Output range...........................................±5 V
Number of channels............................... 4
Gain accuracy1 ...................................... 0.15% of full scale
Offset voltage
Input................................................±6 µV
Output............................................. ±3 mV
Stability versus ambient temperature
Input offset drift..............................±0.2 µV/°C
Output offset drift........................... ±200 µV/°C
Gain drift.........................................20 ppm/°C
Input bias current .................................. ±80 pA
Input resistance
Normal............................................ 1 GΩ
Power off.........................................50 kΩ
Overload..........................................50 kΩ
Output resistance
Multiplexed-Output mode...............100 Ω
Parallel-Output mode......................330 Ω
1 Includes the combined effects of gain, offset, and hysteresis and nonlinearity