/diy/ - Do It Yourself

>>1660307
I used this to try to calibrate a DLP 3D printer long ago. if I remember correctly, Vo=-Id*Rfb
$0.03 LM358s are a bit howyadoin for precision work like this. spend at least $0.06 on a quality op amp with high input impedance and a common-mode voltage range slightly beyond the rails. MCP600x is my go-to for this sort of thing and they're cheap. be sure the op amp you choose has a CM voltage range including the rail you're working against

>>1660309
>in a different circuit
with a different power supply?
>clock signal from god knows where
so it is in fact getting a clock signal? have you tried injecting your own in place of the 1G32?

>>1660307
high impedance is a must