Hello
I am currently working on a simple EMG Amplifier and am in the process of laying out the PCB. Currently I am using x3 100nF cap's for decoupling, one between power & ground, one between power and ref, and one between ground and ref. I want to keep the board size small (50mm x 30mm) but am finding that the ref to gnd/pwr decoupling cap's are a bit awkward to place.
So the question is are the last two decoupling cap's worth having, keep in mind that the peak frequency of the amplifier is a whopping ~300Hz.
Cheers, Anton
EDIT: Updated schematic with proper input resistors (had none before), and changed the OPAMP to TL064 (from LT324)