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The Voltage-Amplifier Stage

The Voltage-Amplifier Stage (VAS)

The Naming of Parts

The Basic Single-ended VAS

Bootstrapping the VAS

The Current-source VAS

VAS Operation and Open-loop Gain

The Simple VAS in a Model Amplifier

The Mechanisms of VAS Distortion

HF Distortion from the VAS Transistor Cbc

Changing the Amplifier Operating Point

Changing the Supply Rails

VAS Distortion from Clamp Diodes

The History of Non-linear Cbc Distortion

LF Distortion Due to VAS Transistor Early Effect

Early Effect in the Simple VAS

The Simulation of Simple VAS Early Effect Distortion

Methods for The Reduction of VAS Distortion

The Emitter-follower VAS

How the EF-VAS Works

A Brief History of the EF-VAS

Clamp Diodes and the EF-VAS

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