Inverting operational amplifier

Introduction

This example shows the operation of a standard inverting operational amplifier circuit.

Description of the model

In the given model, the feedback resistance is , input impedance . Hence, the gain factor is defined as .

Since the operational amplifier unit implements an ideal device (i.e., with an infinite gain), a certain gain does not depend on the output load. Thus, at the amplitude of the input voltage at the output, it increases to an amplitude of .

Simulation results

As a result of the simulation, the input and output voltage graphs will have the form shown in the figure below.

As can be seen from the graphs, the instantaneous voltage at the output of the operational amplifier is inverted and amplified 10 times.

Conclusion

In the considered example, a circuit of an ideal inverting operational amplifier is assembled and modeled.