©
National Instruments Corporation
43
NI sbRIO-961x/9612XT/963x/9632XT/964x/9642XT
NoiseUncertainty
= (244
μ
V
·
3) /
Noise Uncertainty
= 73.2
μ
V
AbsoluteAccuracy
= 10 V · 434 ppm + 10 V · 341 ppm + 73.2
μ
V
AbsoluteAccuracy
= 7,823
μ
V (rounds to 7,820
μ
V)
To determine the absolute accuracy over the full operating temperature
range, let:
TempChangeFromLastInternalCal =
45 °C
Analog Output
(NI sbRIO-963
x
/9632XT and NI sbRIO-964
x
/9642XT Only)
Number of channels ............................... 4 analog output channels
DAC resolution ...................................... 16 bits
Type of DAC.......................................... String
Output range
........................................... ±
10 V
Operating voltage
Nominal .......................................... ±10.7 V
Minimum ........................................ ±10.3 V
Maximum........................................ ±11 V
Current drive .......................................... ±3 mA per channel
Output impedance .................................. 0.1
Ω
Accuracy
Stability
Offset drift....................................... 80
μ
V/°C
Gain drift......................................... 6 ppm/°C
Measurement Conditions
Percent of Reading
(Gain Error)
Percent of Range*
(Offset Error)
Calibrated, max (–40 to 85 °C)
0.35%
0.75%
Calibrated, typ (25 °C, ±5 °C)
0.01%
0.1%
Uncalibrated, max (–40 to 85 °C)
2.2%
1.7%
Uncalibrated, typ (25 °C, ±5 °C)
0.3%
0.25%
* Range equals ±10.7 V
100
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