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PCM4204: Making PCM4204/OPA1632 for single ended mode

Electronics IDC
Prodigy 95 points
Part Number: PCM4204
Other Parts Discussed in Thread: , OPA1632

Tool/software:

Hi,

I am implementing a circuit design that closely follows the analog front-end of the PCM4204EVM, including the op-amp and buffer stages. The only variations in my implementation are the values of the feedback resistor and capacitors associated with the op-amp. I’ve attached schematics of both the EVM reference and my modified circuit.

Could you please confirm whether the PCM4204 ADC/OPA1632 supports single-ended input operation, or if it is strictly limited to differential input only?

If single-ended operation is feasible, I would appreciate your recommendations for the necessary circuit modifications to achieve optimal performance.

Thanks in advance.

My design:

PCM4204EVM design: