Amplifier characteristics, Dynamic characteristics – National Instruments NI 6014 User Manual
Page 72
Appendix A
Specifications
© National Instruments Corporation
A-3
Gain error (relative to calibration reference)
After calibration (gain = 1) ............. ±74 ppm of reading max
Before calibration ........................... ±18,900 ppm of reading max
Gain
≠ 1 with gain error
adjusted to 0 at gain = 1 ................. ±300 ppm of reading max
Amplifier Characteristics
Input impedance
Normal powered on ........................ 100 G
Ω in parallel with 100 pF
Powered off..................................... 820
Ω
Overload.......................................... 820
Ω
Input bias current ................................... ±200 pA
Input offset current................................. ±100 pA
CMRR (DC to 60 Hz)
Gain 0.5, 1.0.................................... 85 dB
Gain 10, 100.................................... 96 dB
Dynamic Characteristics
Bandwidth
Settling time for full-scale step
Gain 100.......................................... ±2 LSB, 5
µs typ
Gain 1, 10........................................ ±2 LSB, 5
µs max
Gain 0.5........................................... ±4 LSB, 5
µs typ
System noise (LSB
rms,
including quantization)
Signal
Bandwidth
Small (–3 dB)
425 kHz
Large (1% THD)
450 kHz
Gain
LSB
rms
0.5, 1.0
0.9
10
1.1
100
6.7