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In this lesson we will see what are the main characteristics of an Operational Amplifier.

We will try to understand what are the values that should characterize the ideal case.

And, finally, we will see how much the real case is close to the ideal case.

An ideal operational amplifier should have the following four characteristics:

  1. ...continue reading "4 – Op Amp: Ideal and real characteristics"

The mathematical model that describes the behavior of any Operational Amplifier is expressed by the following equation:

V_{OUT}=A\cdot \left( V_{+}-V_{-} \right)

Its meaning is simple: output voltage is equal to the difference between input voltages amplified by a positive factor A (called open-loop gain).

...continue reading "3 – Op Amp: Characteristic Equation And Curve"