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© National Instruments Corporation A-1 SC-2040 User Manual
Appendix A
Specifications
This appendix lists the specifications for the SC-2040. These are typical at 25° C unless otherwise stated. The
operating temperature range is 0° to 50° C.
Analog Input
Input Characteristics
Number of channels 8 differential
Input signal ranges Board Gain
(Hardware
Selectable)
Board Range
Max Output Range ±10 V
1 ±10 V
10 ±1 V
100 ±100 mV
200 ±50 mV
300 ±33.3 mV
500 ±20 mV
600 ±16.67 mV
700 ±14.29 mV
800 ±12.5 mV
Input coupling DC
Max working voltage
(signal + common mode) Average of 2 inputs should remain within ±7 V of ground
Overvoltage protection ±30 V powered on, ±15 V powered off
Inputs protected ACH<0..7>
Transfer Characteristics
Offset error
Pregain error after calibration ±100 µV max
Postgain error after calibration ±2 mV max
Gain error and nonlinearity Gain
(DIP-switch-
selectable)
Max
Gain Error
Max
Gain Tempco
Max
Nonlinearity
1 ±0.05% ±25 ppm/°C ±0.01%
10 ±0.1% ±25 ppm/°C ±0.01%
100 ±0.2% ±45 ppm/°C ±0.02%
200 ±0.4% ±60 ppm/°C ±0.02%
300 -0.3%, ±0.6% ±80 ppm/°C ±0.03%
500 ±1.0% ±100 ppm/°C ±0.04%
600 -0.2%, ±1.5% ±120 ppm/°C ±0.05%
700 -0.1%, ±2.0% ±150 ppm/°C ±0.06%
800 -0.3%, ±3.0% ±200 ppm/°C ±0.07%