National Instruments Low-Cost Multifunction I/O Board for ISA Lab-PC+ - Manual (Page 83)

Specifications Appendix A
Lab-PC+ User Manual A-2 © National Instruments Corporation
Amplifier Characteristics
Input impedance ............................................
0.1 G
Ω
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
µ
s
20
µ
s
33
µ
s
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
µ
V/ºC
Postgain ................................................... 10
µ
V/ºC
Gain temperature coefficient.........................
±
50 ppm/ºC