Analysis and comparison of class AB current mirror OTAs

Authors:
Melita Pennisi;Gaetano Palumbo;Ramon Gonzalez Carvajal
Affiliations:
Dipartimento di Ingegneria Elettrica Elettronica e dei Sistemi (DIEES), University of Catania , Catania, Italy;Dipartimento di Ingegneria Elettrica Elettronica e dei Sistemi (DIEES), University of Catania , Catania, Italy;Department of Electronic Engineering, School of Engineering, University of Seville, Seville, Spain
Venue:
Analog Integrated Circuits and Signal Processing
Year:
2011

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Abstract

Three representative class AB Current Mirror OTAs are analytically compared in term of the tradeoffs among speed, current consumption and area. The approach presented allows to derive useful design guidelines. The analysis was validated by means of simulations in a 90 nm CMOS technology.