National Instruments NI 6014 - Manual (Page 72)

Appendix A Specifications
© National Instruments Corporation A-3 NI 6013/6014 User Manual
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