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An information theoretic approach to optimal amplifier operation

  • University of Maryland, College Park

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

Amplifier performance can be severely degraded by the presence of intrinsic physical noise sources. We analyze the information transfer rates for simple and wide-range operational transconductance amplifiers (OTAs) using the principles of information theory. Frequency transfer characteristics and input-referred noise of both simple and wide-range OTAs are modeled using process dependent noise parameters to determine the frequency ranges of operation that provide minimum noise and maximum information capacity. The theoretical predictions of channel capacity are compared with empirical estimates of capacity determined using transfer characteristics and output noise obtained experimentally. The amplifiers have been fabricated in a commercially available 0.5μm process.

Original languageEnglish
Title of host publication2005 IEEE International 48th Midwest Symposium on Circuits and Systems, MWSCAS 2005
Pages13-16
Number of pages4
DOIs
StatePublished - 2005
Event2005 IEEE International 48th Midwest Symposium on Circuits and Systems, MWSCAS 2005 - Cincinnati, OH, United States
Duration: Aug 7 2005Aug 10 2005

Publication series

NameMidwest Symposium on Circuits and Systems
Volume2005
ISSN (Print)1548-3746

Conference

Conference2005 IEEE International 48th Midwest Symposium on Circuits and Systems, MWSCAS 2005
Country/TerritoryUnited States
CityCincinnati, OH
Period08/7/0508/10/05

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