Preamp schematics for Piezo sensors ( for acoustic guitar) with ultra-high impedance..more than 1M

Thread Starter

Alon Perelmuter

Joined Apr 23, 2016
Hello experts,

I would like to design and build a Preamp for acoustic guitar with Piezo sensors (I am using this piezos
currently I've got this OP-AMP , MCP6021\4
The most important thing is that I want the signal from the guitar to be able to connect to LINE LEVEL equipment such sound boards and It has to be also with low impedance..
and, I've got only 1 power supply, 5V DC to feed the op-amps :\

Any suggestions or links to a pre-amp for this kind of needs?

Thank you all!!