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Appendix A Specifications
VXI-SC-1102/B/C User Manual A-2
©
National Instruments Corporation
Gain error
Gain = 1
After calibration.................... 0.015% of reading max
Before calibration ................. 0.04% of reading
Gain = 100
After calibration.................... 0.02% of reading max
Before calibration ................. 0.1% of reading
Amplifier Characteristics
Input impedance
Normal powered on ..................... >1 GΩ
Powered off ................................. 10 kΩ
Overload...................................... 10 kΩ
Input bias current...................................±0.5 nA
Input offset current................................±1.0 nA
CMRR
Output range ..........................................±10 V
Output impedance .............................. 0.1 Ω
Dynamic Characteristics
Bandwidth (-3 dB) ............................. 2 Hz (1102)
200 Hz (1102B)
10 kHz (1102C)
Scan interval (per channel, any gain)
0.012% ........................................ 3 µs
0.0061% ...................................... 10 µs
1102 1102B 1102C
50 to 60 Hz, either gain 110 dB 90 dB 90 dB
0 Hz, gain 1 75 dB min 75 dB min 75 dB min
0 Hz, gain 100 100 dB min 100 dB min 100 dB min