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AD7934 full-differential mode

Question asked by raviphulsundar on Mar 19, 2013
Latest reply on Apr 3, 2013 by BrenS

Dear All,

 

I'm using AD7934 with FPGA interface. I want to use AD7934 in differential mode.

I've used AD8138 for converting single-end to differential signal.

ADC is working in single-end mode (M0=0,M1=0) quite nicely. I tried all four input channels VIN0-3 in single mode all are working nice.

 

But When I configure ADC  for fully diferential and even pseudo differential mode but no success. Output keeps fluctuating.

 

Kindly help me

 

Thanx in advance

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