I am setting up an amplifier for a piezoelectric acoustic sensor (frequency response 50Hz to 20kHz).
The sensor has very high output impedance.
High input impedance and low noise is required for the op-amp.
I have several questions about it:
(1) Is OPA 337 a good selection? Are there better op-amp options?
(2) What circuit configuration is good? Although I know that both voltage application and charge application probably be used, I am not sure which one is better. Is there some existing good configuration?
I hope to get some advice.
Thank you very much for your help.
