I'm trying to wire a simple inverting op amp circuit just to test it. I have been unable to make it work. This is the circuit I have: I have simulated this circuit and it gives 1.92V (it should be -1.92, but I guess that is because the simulator doesn't like negative voltages). And this is how I wire it:
- In the board, the
+rail is 3.3V and the
-rail is 0V
- The op amp I'm using is this: OPA23344PA
- The 3.3V rail voltage come from a voltage regulator, which is powered by a 9V battery.
- I have double checked that the rail voltage is 3.3V.
- I have tested this same op amp in non-inverting mode and it works fine.
What I'm missing here?