Hello, I am designing an ADC input stage for the PCM1804, usign the OPA1632 differential opamp. Reading the opamp's datahseet, I found a recommended circuit for this implementation (see attachment). The question is: is it necessary to buffer the VCOM pin of the A/D, or can I connect it directly to the Vocm pin of the opamp (perhaps through an RC filter)? Thanks a lot.
Diego.
Diego.
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