Harmonic Distortion in CMOS Current Mirrors

Erik Bruun

doi:10.1109/ISCAS.1998.704572

Harmonic Distortion in CMOS Current Mirrors

Erik Bruun

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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Abstract

One of the origins of harmonic distortion in CMOS current mirrors is the inevitable mismatch between the MOS transistors involved. In this paper we examine both single current mirrors and complementary class AB current mirrors and develop an analytical model for the mismatch induced harmonic distortion. This analytical model is verified through simulations and is used for a discussion of the impact of mismatch on harmonic distortion properties of CMOS current mirrors. It is found that distortion levels somewhat below 1% can be attained by carefully matching the mirror transistors but ultra low distortion is not achievable with CMOS current mirrors

Original language	English
Title of host publication	Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on
Volume	1
Publisher	IEEE
Publication date	1998
Pages	567-570
ISBN (Print)	0-7803-4455-3
DOIs	https://doi.org/10.1109/ISCAS.1998.704572
Publication status	Published - 1998
Event	1998 IEEE International Symposium on Circuits and Systems - Monterey, CA, United States Duration: 31 May 1998 → 3 Jun 1998 http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=5627

Conference

Conference	1998 IEEE International Symposium on Circuits and Systems
Country	United States
City	Monterey, CA
Period	31/05/1998 → 03/06/1998
Internet address	http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=5627

Bibliographical note

Copyright: 1998 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

Access to Document

10.1109/ISCAS.1998.704572

BruunFinal published version, 367 KB

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title = "Harmonic Distortion in CMOS Current Mirrors",

abstract = "One of the origins of harmonic distortion in CMOS current mirrors is the inevitable mismatch between the MOS transistors involved. In this paper we examine both single current mirrors and complementary class AB current mirrors and develop an analytical model for the mismatch induced harmonic distortion. This analytical model is verified through simulations and is used for a discussion of the impact of mismatch on harmonic distortion properties of CMOS current mirrors. It is found that distortion levels somewhat below 1% can be attained by carefully matching the mirror transistors but ultra low distortion is not achievable with CMOS current mirrors",

author = "Erik Bruun",

note = "Copyright: 1998 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; 1998 IEEE International Symposium on Circuits and Systems, ISCAS'98 ; Conference date: 31-05-1998 Through 03-06-1998",

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N2 - One of the origins of harmonic distortion in CMOS current mirrors is the inevitable mismatch between the MOS transistors involved. In this paper we examine both single current mirrors and complementary class AB current mirrors and develop an analytical model for the mismatch induced harmonic distortion. This analytical model is verified through simulations and is used for a discussion of the impact of mismatch on harmonic distortion properties of CMOS current mirrors. It is found that distortion levels somewhat below 1% can be attained by carefully matching the mirror transistors but ultra low distortion is not achievable with CMOS current mirrors

AB - One of the origins of harmonic distortion in CMOS current mirrors is the inevitable mismatch between the MOS transistors involved. In this paper we examine both single current mirrors and complementary class AB current mirrors and develop an analytical model for the mismatch induced harmonic distortion. This analytical model is verified through simulations and is used for a discussion of the impact of mismatch on harmonic distortion properties of CMOS current mirrors. It is found that distortion levels somewhat below 1% can be attained by carefully matching the mirror transistors but ultra low distortion is not achievable with CMOS current mirrors

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DO - 10.1109/ISCAS.1998.704572

M3 - Article in proceedings

SN - 0-7803-4455-3

VL - 1

SP - 567

EP - 570

BT - Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on

PB - IEEE

T2 - 1998 IEEE International Symposium on Circuits and Systems

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