National Instruments NI PXI-7831R Accuracy Information, DC Transfer Characteristics, Dynamic Characteristics

Appendix A Specifications
NI PXI-7831R User Manual A-2 ni.com
Overvoltage protection...........................±42 V
Data transfers..........................................Interrupts, programmed I/O
Accuracy Information
DC Transfer Characteristics
INL..........................................................±3LSB typ, ±6 LSB max
DNL........................................................–1.0 to +2.0 LSB max
No missing codes resolution...................16 bits typ, 15 bits min
CMRR, DC to 60 Hz..............................86 dB
Dynamic Characteristics
Bandwidth
Small signal (–3 dB)........................820 kHz
Large signal (1% THD)...................55 kHz
System noise...........................................1.8 LSBrms
(including quantization)
Nominal Range (V)
Absolute Accuracy
Relative
Accuracy
% of Reading
Offset
(µV)
Noise +
Quantization
(µV)
Temp
Drift
(%/ °C)
Absolute
Accuracy
at Full
Scale
(±mV)
Resolution (µV)
Positive
Full
Scale
Negative
Full
Scale
24
Hours 1 Year
Single
Pt. Averaged
Single
Pt. Averaged
10.0 –10.0 0.0496 0.0507 2542 1779 165 0.0005 7.78 2170 217
Note: Accuracies are valid for measurements following an internal calibration. Measurement accuracies are listed for
operational temperatures within ±1 °C of internal calibration temperature and ±10 °C of external or factory-calibration
temperature. Temp drift applies only if ambient is greater than ±10 °C of previous external calibration.