03-08-2021 03:36 AM
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.
03-08-2021 11:10 PM
03-08-2021 11:12 PM
Appreciate any comment.
03-10-2021 02:48 AM
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...