Chapter 3
Single-Supply Op Amp Design Techniques
Abstract
Although best performance can be obtained from an op amp circuit using dual supplies, a great many designs only have a single positive supply available. In the case of AC coupled circuits, the designer has to design the op amp circuit with a virtual ground local to the stage, yet isolated from previous and subsequent stages. Single-supply inverting op amp stages are easier to deal with than noninverting stages.
Keywords
AC coupled; Single-supply; Virtual ground
3.1. Single Supply Versus Dual Supply
The previous chapter assumed that all op amps were powered from dual or split supplies. This is not always the case in today's world of portable battery-powered equipment. When op amps are powered ...
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