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Appendix A
Specifications
©
National Instruments Corporation
A-3
6711/6713/6715 User Manual
Accuracy Information
Transfer Characteristics
Relative accuracy (INL)
After calibration .............................. ±0.3 LSB typ, ±0.5 LSB max
Before calibration ........................... ±4 LSB max
DNL
After calibration .............................. ±0.3 LSB typ, ±1.0 LSB max
Before calibration ........................... ±3 LSB max
Monotonicity .......................................... 12 bits guaranteed after
calibration
Offset error
After calibration .............................. ±1.0 mV typ, ±5.9 mV max
Before calibration ........................... ±200 mV max
Gain error (relative to internal reference)
After calibration .............................. ±0.01% of output max
Before calibration ........................... ±0.5% of output max
Gain error
(relative to external reference) ............... +0% to +0.5% of output max, not
adjustable
Nominal Range (V)
Absolute Accuracy
% of Reading
Offset
Temp Drift
Positive
FS
Negative
FS
24 Hours
90 Days
1 Year
(mV)
(%/°C)
10
–10
0.0177%
0.0197%
0.0219%
±5.933
0.0005%
Absolute accuracy = (% of Reading
×
Voltage) + (Temp Drift
×
Voltage)
Note: Temp drift applies only if ambient is greater than ±10 °C of previous external calibration.
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