Design of readout IC for uncooled infrared bolometer sensor using bias offset correction technique

Won Park Sang, Joon Hwang Sang, Sik Jung Eun, Young Sung Man

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Infrared bolometer sensor's variation is detected by voltage drop between reference resistor and bolometer resistor in this architecture. One of the serious problems in this architecture is that these resistors value has a process variation. So common-mode level could be different from expectation in room temperature. Different common-mode level could lead to wrong output at the end of readout circuit. We suggest useful method to solve this problem. Difference correction using capacitor has reduced CM level difference to 86 % for 1 MΩ bolometer and reference resistor's 10 % variation.

    Original languageEnglish
    Title of host publication2005 IEEE International 48th Midwest Symposium on Circuits and Systems, MWSCAS 2005
    Pages452-455
    Number of pages4
    DOIs
    Publication statusPublished - 2005
    Event2005 IEEE International 48th Midwest Symposium on Circuits and Systems, MWSCAS 2005 - Cincinnati, OH, United States
    Duration: 2005 Aug 72005 Aug 10

    Publication series

    NameMidwest Symposium on Circuits and Systems
    Volume2005
    ISSN (Print)1548-3746

    Other

    Other2005 IEEE International 48th Midwest Symposium on Circuits and Systems, MWSCAS 2005
    Country/TerritoryUnited States
    CityCincinnati, OH
    Period05/8/705/8/10

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Electrical and Electronic Engineering

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