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Do I need to change single-ended signal to differential mode for ADC?

Question asked by richiechen on Dec 13, 2012
Latest reply on Dec 16, 2012 by richiechen

Dear ALL

 

I am trying to design ADC circuit with AD7682.

 

The ADC is reading output from a phase-lock loop. It means that the ADC is basically reading DC value or very low frequency value.

However, a 16 bit precision is required.

 

My question is, to achieve the high precision, is a differential pair is needed?

 

Thank you very much.

 

Regards

Richie CHEN

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