Part of a circuit I'm building involves a non-inverting op-amp, and I can't figure out what is wrong with this circuit. I'm providing the op-amp (this one) with 5V to 0V power, and the non-inverting input is connected to 3.3V input. All the parts are connected to their respective places correctly I think, but the output voltage shows a static 4V, while the gain is supposed to be 3 and the output should be something close to 10V. I have also tried using different op-amp, separating the ground, and switching out wires, but none of them worked, and I wonder what I did wrong in this circuit.
Your circuit cannot produce an ouput voltage that is greater than the op-amp supply voltage.
An op-amp cannot invent an unlimited output voltage.
For your OPA552, the data sheet states
Most op amps have limited voltage swing, and will not output a voltage as high as the power supply voltage. 4V is typical, for 5V power.
Choose a rail-to-rail op amp for larger output voltage swing.
Oh. That's something I didn't know. That was probably the problem (I'll get another power supply with a much greater voltage). Thank you.
And it is not designed to operate from a single 5V supply. It needs a symmetrical powersource with at least +4V and -4V.
Gnd in your circuit cannot be simply connected to V-
You will destroy the Arduino if you feed 10V into the analog input.
Instead, use your multimeter to test such circuits.
I'm not going to input the voltage into arduino, but use another source of voltage separate from arduino when I find one in the lab at my school.
Not even from the op amp output, as suggested in your first post?
Almost every opamp could work with single rail supplies, but you need a different biasing method,(few resistors more) google it. You need DC gain?
More important question is, what exactly you`re trying to do with opamp?
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