Bipolar/CMOS (Weak Inversion) Rail-to-Rail Constant-g _m Input Stage

Author Info

Vladimir I. Prodanov, State University of New York at Stony Brook, NYFollow
Michael M. Green, State University of New York at Stony Brook, NY

Recommended Citation

Postprint version. Published in Institution of Engineering and Technology Electronics Letters, Volume 33, Issue 5, February 1, 1997, pages 386-387.

NOTE: At the time of publication, the author Vladimir Prodanov was not yet affiliated with Cal Poly.

The definitive version is available at https://doi.org/10.1049/el:19970263.

Abstract

A rail-to-rail constant-g_m input stage suitable for bipolar or weak inversion CMOS implementation is presented. To achwe rail-to rail operation, two complementary differential pairs driven in parallel are used. To guarantee constant net transconductance each differential pair is augmented with a suitable biasing circuit. The biasing circuits are implemented without current mirrors, which results in low sensitivity to process variations and potentially higher bandwidth.

Disciplines

Electrical and Computer Engineering

Publisher statement

This paper is a postprint of a paper submitted to and accepted for publication in Electronics Letters and is subject to Institution of Engineering and Technology Copyright.