0 Replies Latest reply on Jul 1, 2010 9:03 PM by userc_44918

    ADC with PGA input ENOB effect

      hi cypress,


      I want to know that when low level sensor(uV level, like a strain gauge) input to PGA and ampilfier, then ADC 20bit selection. how much ADC output data has effect the ENOB, SNR etc...?


      I know that 20Bit ADC's ENOB is about 18bit. but I think PGA will effect the ENOB on the total system.


      blow is my schematic. please check it. thanks