Bias offset correction technique for uncooled infrared bolometer sensor readout IC

Won Park Sang, Joon Hwang Sang, Woo Ryu Jang, Woo Hong Seung, Young Sung Man

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

    3 Citations (Scopus)

    Abstract

    Infrared bolometer sensor's variation is detected by voltage drop between a reference resistor and a 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 value 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 88.5 % for 1 MΩ bolometer and reference resistor's 10 % variation.

    Original languageEnglish
    Title of host publication2005 IEEE Conference on Electron Devices and Solid-State Circuits, EDSSC
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages725-728
    Number of pages4
    ISBN (Print)0780393392, 9780780393394
    DOIs
    Publication statusPublished - 2005
    Event2005 IEEE Conference on Electron Devices and Solid-State Circuits, EDSSC - Howloon, Hong Kong
    Duration: 2005 Dec 192005 Dec 21

    Publication series

    Name2005 IEEE Conference on Electron Devices and Solid-State Circuits, EDSSC

    Other

    Other2005 IEEE Conference on Electron Devices and Solid-State Circuits, EDSSC
    Country/TerritoryHong Kong
    CityHowloon
    Period05/12/1905/12/21

    Keywords

    • Bolometer
    • Common-mode voltage
    • Offset
    • Readout IC

    ASJC Scopus subject areas

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

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