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© National Instruments Corporation A-1 NI 783xR User Manual
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Specifications
This appendix lists the specifications of the NI 783xR. These specifications
are typical at 25 °C unless otherwise noted.
Analog Input
Input Characteristics
Number of channels
NI 7830R......................................... 4
NI 7831R......................................... 8
NI 7833R......................................... 8
Input modes............................................ DIFF, RSE, NRSE
(software-selectable; selection
applies to all channels)
Type of ADC.......................................... Successive approximation
Resolution .............................................. 16 bits, 1 in 65,536
Conversion time ..................................... 4
µs
Maximum sampling rate ........................ 200 kS/s (per channel)
Input impedance
Powered on ..................................... 10 GΩ in parallel with 100 pF
Powered off..................................... 4 kΩ min
Overload.......................................... 4 kΩ min
Input signal range................................... ±10 V
Input bias current ................................... ±2nA
Input offset current................................. ±1nA
Input coupling ........................................ DC