Electronic – Are there ideal opamps that exist in the real world

analogoperational-amplifiervoltage

Are ideal opamps being sold? By ideal opamps, I mean those whose output can be calculated from the appropriate equations (negative and positive feedback.)

I am asking this because I am running simulations on Falstad and the real opamps (those whose supply pins are not initially connected) give very different results from the theory I know.

For example I put some negative feedback on a real opamp and I put the feedback resistor and the input resistor to be the same connected VEE to GND and VCC to 10V and input value of 3V. I expected an output value of 2V however it showed basicaly a voltage divider.
Isn't the simulator good or what?

I have designed many circuits using ideal opamps and now I need to translate those circuits to circuits with a real opamp.

Best Answer

While there are no ideal op amps, real-world parts approximate well within limits, including but not limited to: input voltage limits, output voltage and current, gain, bandwidth and noise. The practical limits for real-world parts vary from one device to another, of course.