Precision Measurement without Ground Offsets Using Differential Amplifier Input to A/D ADC


Posted on Feb 5, 2014

Ground loop offset errors and ground noise are removed by a differential amplifier or instrumentation amplifier prior to A/D analog to digital conversion. The differential input amplifier mitigates ground loop errors. Precision measurement of non-isolated sensors. Simple op-amp circuit removes ground loop errors. Op-amp schematic removes ground noise..


Precision Measurement without Ground Offsets Using Differential Amplifier Input to A/D ADC
Click here to download the full size of the above Circuit.




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