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Understanding common mode voltages with true differntial ADC

Question asked by HAW on Apr 17, 2016
Latest reply on Apr 21, 2016 by awalshe

I read several articles about true differential ADCs but I am still  a bit confused about common mode inputs.

So here's example: assuming a resistor has 3.5 V on one terminal and 4 V on another, would AD7691 (5 V Vref) be able to measure voltage drop across it?