National Instruments NI 9683 User Manual And Specifications page 18

Scanned Analog Input (Monitoring)
Number of channels ..........................................8
ADC resolution .................................................12 bits
Input range
Typical.......................................................0 V to 5 V
Minimum ..................................................12 mV to 4.97 V
Sample rate (all channels).................................1 kS/s max
1
Accuracy
Measurement
Conditions
Maximum (-40 °C to 85 °C)
Typical (23 ° ±5 °C)
AbsoluteAccuracy = Reading(GainError) + Range(OffsetError) + Noise
*
Local ambient temperature. Refer to the
temperatures.
†
Range equals 5 V.
‡
Offset error includes the effect of INL.
Stability
Gain drift...................................................3 ppm/°C
Offset drift.................................................3 µV/°C
Noise .................................................................0.5 mV
-3 dB bandwidth................................................130 kHz
Input impedance for channel ON......................10 kΩ, 120 pF low pass filter
Input current for channel OFF ..........................10 μA max
Overvoltage protection .....................................±30 V max
Analog Output (Set-Point)
Number of channels ..........................................8
DAC resolution .................................................12 bits
Startup voltage ..................................................0 V
1
With signal source impedance <2 k
information about the influence of source impedance over accuracy.
18 | ni.com | NI 9683 User Guide and Specifications
Percent of Reading
*
(Gain Error)
Environmental
Ω
. Refer to the
0.30%
0.03%
section for more information about operating
rms
Scanned Analog Input (Monitoring)
Percent of Range
‡
(Offset Error)
0.23%
0.03%
section for more
†