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NI 5741 Absolute Accuracy

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I've been looking at a lot of PXI and C Series accuracy specs, which usually give either an absolute figure at full range or a percentage gain/offset.

 

The specs for the 5741 (http://www.ni.com/pdf/manuals/373937b.pdf) are written very differently, and include other components (like DNL) that don't appear in the other specs I have seen.  How can I calculate the absolute accuracy at full scale?

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Accepted by topic author johndigsby85

Hey Johndigsby85,

 

Have you checked out any of the documents on how to calculate absolute accuracy? They should be a great starting point 

 

Calculating Absolute Accuracy or System Accuracy

Calculate Absolute Accuracy of Dynamic Signal Acquisition Devices

Should The Absolute Accuracy Of A Measurement See A Constant or Dynamic Offset?

 

If the spec has the INL named, this can be treated as a worst case DNL offset, and you don't need to worry about DNL for absolute accuracy calculations. (see Differential Non-Linearity (DNL) )

 

Hope this helps,

Rebecca

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