ej_whyte
Well-known member
Just a quick question. In an inverting opamp stage, if using a cap (C1) to block DC from going back to the previous stage, is a drain resistor (R2) required, as one end of the cap is already connected to a virtual earth?
And the value of R2 (if needed) doesn't affect the gain as far as I'm aware?
Thanks
And the value of R2 (if needed) doesn't affect the gain as far as I'm aware?
Thanks