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
CountryUnited 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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