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Analysis and design of low-distortion CMOS source followers

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Analysis and design of low-distortion CMOS source followers

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Title: Analysis and design of low-distortion CMOS source followers
Author: Fan, Xianping; Chan, Pak Kwong
Copyright year: 2005
Abstract: This paper presents the analysis of CMOS technology based nMOS source follower (NSF), pMOS source follower (PSF), and cascade-complementary source follower(CCSF) using a simplified large-signal model. Three new large-signal second harmonic equations and high-frequency transfer functions are derived. Optimization strategies which permit optimal design for low-distortion NSF, PSF, and CCSF are proposed. This includes a new complementary linearization method introduced for CCSF. With employment of dedicated optimization, the CCSF can achieve significantly better low-distortion broad-band characteristics than the other schemes. Comparative HSPICE simulated results for the three source followers have shown good agreement with the second-order analytical results using the simplified BSIM3 model equations.
Subject: DRNTU::Engineering::Electrical and electronic engineering
Type: Journal Article
Series/ Journal Title: IEEE transactions on circuits and systems-I : regular papers
School: School of Electrical and Electronic Engineering
Rights: IEEE Transactions On Circuits And Systems-I: Regular Papers © 2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. http://www.ieee.org/portal/site.
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