1V rail-to-rail constant Gm amplifier with common-mode elimination technique

Boram Lee, Ted Higman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

In this paper we present a novel common-mode elimination technique for a 1V rail-to-rail CMOS amplifier. For 1V single supply voltage, the input signal compression technique ([1]) is used to avoid the dead zone of input stage. Before the conventional PMOS input amplifier, the original signal is processed by the common mode elimination block which is composed with signal compression block, signal inverting block and 4 resistors. After this common mode elimination block, the original common mode signal variation from 0V to 1V is compressed with about 3.7mV variation while the compression rate of differential signal is about 71.4%. With this technique, ultra high CMRR (min 115.1dB) is obtained with 43.3dB differential gain. Cadence SPECTRE simulator and TSMC 0.25-μm CMOS technology are used to simulate this work.

Original languageEnglish (US)
Title of host publication2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013
Pages385-388
Number of pages4
DOIs
StatePublished - Sep 9 2013
Event2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013 - Beijing, China
Duration: May 19 2013May 23 2013

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)0271-4310

Other

Other2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013
CountryChina
CityBeijing
Period5/19/135/23/13

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Lee, B., & Higman, T. (2013). 1V rail-to-rail constant Gm amplifier with common-mode elimination technique. In 2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013 (pp. 385-388). [6571861] (Proceedings - IEEE International Symposium on Circuits and Systems). https://doi.org/10.1109/ISCAS.2013.6571861