Design of class AB output stages using the structural methodology

V Ivanov,I Filanovsky

doi:10.1109/iscas.2004.1328296

Design of class AB output stages using the structural methodology

V Ivanov, I Filanovsky

https://doi.org/10.1109/iscas.2004.1328296

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Publication Date: May 23, 2004

Affiliation: Texas Instruments (United States), University of Alberta

#CMOS Output Stages #Output Stages + Show 8 more

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Abstract

The structural design methodology is applied to class AB opamp output stages. As a starting point the stage generalized signal graph is proposed. The graphs of few common output stages are analyzed, and it is shown that this analysis helps to find their drawbacks. The general graphs may have many realizations, and the choice of cells for realization and generation of new circuit solutions for CMOS and bipolar output stages is outlined. The micropower bipolar and low-voltage (1.2 V) CMOS output stages are given as examples.

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