I am learning op-amps. A question that came to mind is which combination of RF, R1, R2, and R3 provides better and cleaner signal in a summing op-amp circuit?
In the attached picture you see that if RF=R1=R2=R3 (not matter what they are), the Vo=-(V1+V2+V3). Can anyone advice me if higher Rs are better (make less noise in the output) or lower ones? and why? Or maybe they really do not matter?