Your schematic snippet is incomplete and gives no information about the type of piezo transducer that you wish to interface to. Please read: [https://easyeda.com/forum/topic/How-to-ask-for-help-and-get-an-answer-71b17a40d15442349eaecbfae083e46a](https://easyeda.com/forum/topic/How-to-ask-for-help-and-get-an-answer-71b17a40d15442349eaecbfae083e46a) [https://en.wikipedia.org/wiki/Piezoelectric_sensor](https://en.wikipedia.org/wiki/Piezoelectric_sensor) [https://en.wikipedia.org/wiki/Charge_amplifier](https://en.wikipedia.org/wiki/Charge_amplifier) and: [https://www.digikey.co.uk/en/articles/fundamentals-of-piezoelectric-shock-and-vibration-sensors](https://www.digikey.co.uk/en/articles/fundamentals-of-piezoelectric-shock-and-vibration-sensors)<br> <br>

These may help too: [https://www.allaboutcircuits.com/technical-articles/understanding-and-implementing-charge-amplifiers-for-piezoelectric-sensor-s/](https://www.allaboutcircuits.com/technical-articles/understanding-and-implementing-charge-amplifiers-for-piezoelectric-sensor-s/) [https://www.allaboutcircuits.com/technical-articles/how-to-design-charge-amplifiers-piezoelectric-sensors/](https://www.allaboutcircuits.com/technical-articles/how-to-design-charge-amplifiers-piezoelectric-sensors/) [https://www.ti.com/lit/an/sloa033a/sloa033a.pdf](https://www.ti.com/lit/an/sloa033a/sloa033a.pdf)