Multifunction DAQ

cancel
Showing results for 
Search instead for 
Did you mean: 

Does NI 6238 6239 Analog Output Accuracy include Random Noise?

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.

0 Kudos
Message 1 of 4
(362 Views)

Capture.PNG

0 Kudos
Message 2 of 4
(324 Views)

Appreciate any comment.

0 Kudos
Message 3 of 4
(321 Views)

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... 

 

HeyTony_0-1615365843992.png

 

0 Kudos
Message 4 of 4
(290 Views)