A high-speed CMOS current op amp for very low supply voltage operation

Erik Bruun

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    Abstract

    A CMOS implementation of a high-gain current mode operational amplifier (op amp) with a single-ended input and a differential output is described. This configuration is the current mode counterpart of the traditional voltage mode op amp. In order to exploit the inherent potential for high speed, low voltage operation normally associated with current mode analog signal processing, the op amp has been designed to operate off a supply voltage of 1.5 V, and the signal path has been confined to N-channel transistors. With this design, a gain of 94 dB and a gain-bandwidth product of 65 MHz has been achieved at a power consumption of 30 μW
    Original languageEnglish
    Title of host publicationProceedings of the IEEE International Symposium on Circuits and Systems
    VolumeVolume 5
    PublisherIEEE
    Publication date1994
    Pages509-512
    ISBN (Print)07-80-31915-X
    DOIs
    Publication statusPublished - 1994
    Event1994 IEEE International Symposium on Circuits and Systems - London, United Kingdom
    Duration: 30 May 19942 Jun 1994
    http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=3224

    Conference

    Conference1994 IEEE International Symposium on Circuits and Systems
    Country/TerritoryUnited Kingdom
    CityLondon
    Period30/05/199402/06/1994
    Internet address

    Bibliographical note

    Copyright: 1994 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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