Harmonic Distortion in CMOS Current Mirrors

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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 languageEnglish
    Title of host publicationCircuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on
    Volume1
    PublisherIEEE
    Publication date1998
    Pages567-570
    ISBN (Print)0-7803-4455-3
    DOIs
    Publication statusPublished - 1998
    Event1998 IEEE International Symposium on Circuits and Systems - Monterey, CA, United States
    Duration: 31 May 19983 Jun 1998
    http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=5627

    Conference

    Conference1998 IEEE International Symposium on Circuits and Systems
    CountryUnited States
    CityMonterey, CA
    Period31/05/199803/06/1998
    Internet address

    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

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