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Experimental CMRR calculation of AD8422.

Question asked by Tejassj on Jan 7, 2016
Latest reply on Jan 8, 2016 by brian.pelletier@analog.com

I have used  AD620 for my earlier analog front end circuits. I want to replace AD620 with AD8422.

I want to replicate the CMRR vs Frequency graph given in the data sheet and the results I have got is too diverse.

Can anyone instruct me the techniques to determine the CMRR of AD8422 or any instrumentation amplifier?

 

Thank you,

TEJAS S J

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