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Forum Post: RE: ADS8166: Question 1 - CM range, CMRR over temperature & frequency

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My comment above about "pseudo-differential" input mode might be misguided. I am attempting to minimize CM noise that might enter the ADC from the field by doing a differential measurement. But as near as I can see, I have to choose between chopping the (nominally unipolar) signal range down to HALF the internal REF?? Or else limit the range of the ADC-AINM to ±01.V for single-ended paired operation?? What happens if it is not contained within this range??

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