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Specifications Appendix A
SC-2040 User Manual A-2 © National Instruments Corporation
Amplifier Characteristics
Input impedance
Normal powered on 100 GΩ in parallel with 20 pF
Input bias current ±100 pA, ±10 mA max
Input offset current ±10 pA
CMRR Gain dB (min and typ)
Gain = 1 70 dB min, 90 dB typ
Gain = 10 87 dB min, 104 dB typ
Gain ≥ 100 100 dB min, 110 dB typ
Output range ±10 V
Dynamic Characteristics
Bandwidth Gain -3 dB
Bandwidth
1
2 MHz
10 800 kHz
100 500 kHz
200 300 kHz
300 180 kHz
500 120 kHz
600 100 kHz
700 80 kHz
800 70 kHz
System noise Gain Filter
1 175 µVrms
10 50 µVrms
100 45 µVrms
200 40 µVrms
300 35 µVrms
500 33 µVrms
600 30 µVrms
700 29 µVrms
800 27 µVrms
Noise spectral density
Input noise (gain = 1) 12 nV/√Hz
Output noise 85 nV/√Hz
Slew rate 8 V/µs