Ideal Op-Amp with Finite Gain and Gain-Bandwidth Product: Laplace Block Model

Created by	UltimateElectronics
Created	July 09, 2020
Last modified	December 23, 2020
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Summary

The frequency response of a real op-amp is well modeled with two parameters: an open-loop DC gain, and a gain-bandwidth product. These two parameters can be modeled in a single Laplace Block.

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Description

This example is from the The Ideal Op-Amp (Operational Amplifier) chapter of Ultimate Electronics Book. A real op-amp is well modeled with two parameters: an open-loop DC gain A_OL and a gain-bandwidth product GBW, resulting in a one-pole rolloff. This gain is easily modeled by a single Laplace Block element which incorporates both the DC behavior as well as the reduced gain at higher frequencies.

Ideal Op-Amp with Finite Gain and Gain-Bandwidth Product: Laplace Block Model PUBLIC

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