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Driver AD9253 using ADA4937

Question asked by flaviano.dambrosi@selex-es.com on Jan 15, 2014
Latest reply on Jan 24, 2014 by flaviano.dambrosi@selex-es.com

Hi,

I have designed a circuit by using an ADA4937-1. I used it to drive ad AD9253-125.

As shown in the picture attached, the input is a single ended Vpp = 1,6V.

The Vcm of the ADC is qual to 0,9V but, using this voltage as Vocm for ADA4937, the signal is clipped.

I would like to know whether it is possible to use a different value for as input to the driver (e.g. 1,3V), without altering the proper working of the ADC of if a different Differential ADC Driver must be used. (as input to the ADC)

 

Thank you very much,

Flaviano

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