How to Minimize Parasitic Capacitance in PCB

Thread Starter

sailmike

Joined Nov 11, 2013
147
I have a circuit design that's highly influenced by parasitic capacitance. I need advice on how to design my PCB to minimize parasitic capacitance. I've attached the schematic. There will also be a potentiometer where M3, M4, and M7 meet to help balance this circuit.



Thanks,
Mike
upload_2016-4-21_13-54-28.jpeg
 

crutschow

Joined Mar 14, 2008
25,122
To minimize parasitic capacitance make the critical traces as narrow as the PCB process can handle, keep a good distance from nearby traces. and have no other traces or ground plane underneath the trace.
Also keep the traces as short as possible.
 
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