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At Device Specifications of NI 6238/6239, the Analog Output absolute accuracy has an item "Random Noise: 2 uA", but the "AO Absolute Accuracy Equation" doesn't contain it!
Seems the equation lost the Noise Uncertainty item?
Should the Noise Uncertainty = Random Noise * 3 / sqrt(Averaging)?
Thank you for your help.
Appreciate any comment.
I find a previous data sheet, it seems the Random Noise is included, but it didn't consider the Averaging effect to noise, don't know whether the latest Device Specification is right or not...
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