A 0.8V, 7μA, rail-to-rail input/output, constant Gm operational amplifier in standard digital 0.18μm CMOS

J Citakovic, I. Riis Nielsen, Jannik Hammel Nielsen, P Asbeck, Pietro Andreani

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    Abstract

    A two-stage amplifier, operational at 0.8V and drawing 7μA, has been integrated in a standard digital 0.18μm CMOS process. Rail-to-rail operations at the input are enabled by complementary transistor pairs with gm control. The efficient rail-to-rail output stage is biased in class AB. The measured DC gain of the amplifier is 75dB, and the unity-gain frequency is 870kHz with a 12pF, 100kΩload. Both input and output stage transistors are biased in weak inversion.
    Original languageEnglish
    Title of host publication23rd NORCHIP Conference, 2005.
    PublisherIEEE
    Publication date2005
    ISBN (Print)1-4244-0064-3
    DOIs
    Publication statusPublished - 2005
    Event2005 IEEE 23rd NORCHIP Conference - Oulu, Finland
    Duration: 21 Nov 200522 Nov 2005
    https://ieeexplore.ieee.org/xpl/conhome/10643/proceeding

    Conference

    Conference2005 IEEE 23rd NORCHIP Conference
    Country/TerritoryFinland
    CityOulu
    Period21/11/200522/11/2005
    Internet address

    Bibliographical note

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