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Looking to modify tidu765 (single-supply electret microphone ref design) to a 3.3v supply.

Other Parts Discussed in Thread: OPA172, TLV9062, TLV6741, OPA377


I have enjoyed reading tidu765. I am working on a design to try to detect a 50-100 hz signal based on this design reference.

Has anyone modified tidu765 to run on a 3.3v supply? Is this a bad idea? I can always add a boost to 5v, but am looking to minimize hardware. If this isn't a terrible idea, can anyone provide some good first steps / pitfalls that I should be aware of? 

Thank you!