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Specifications Appendix A
Lab-PC+ User Manual A-2 © National Instruments Corporation
Amplifier Characteristics
Input impedance ............................................ 0.1 GΩ in parallel with 45 pF
Input bias current .......................................... 150 pA
CMRR ...........................................................
Gain CMRR at 60 Hz
1
100
75 dB
105 dB
Dynamic Characteristics
Bandwidth (-3 dB) ........................................ 400 kHz for gain = 1, 40 kHz for gain = 100
Settling time to full-scale step.......................
Gain Accuracy
±0.2% (± LSB)
≤10
20, 50
100
14 µs
20 µs
33 µs
System noise .................................................
Gain ±5 V Range
1
100
0.3 LSB rms
0.6 LSB rms
Stability
Recommended warm-up time ....................... 15 minutes
Offset temperature coefficient
Pregain .................................................... 450 µV/ºC
Postgain ................................................... 10 µV/ºC
Gain temperature coefficient......................... ±50 ppm/ºC