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

doi:10.1109/MWSCAS.2005.1594135

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

* Honorary professors

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	2005 IEEE International 48th Midwest Symposium on Circuits and Systems, MWSCAS 2005
Pages	452-455
Number of pages	4
DOIs	https://doi.org/10.1109/MWSCAS.2005.1594135
Publication status	Published - 2005
Event	2005 IEEE International 48th Midwest Symposium on Circuits and Systems, MWSCAS 2005 - Cincinnati, OH, United States Duration: 2005 Aug 7 → 2005 Aug 10

Publication series

Name	Midwest Symposium on Circuits and Systems
Volume	2005
ISSN (Print)	1548-3746

Other

Other	2005 IEEE International 48th Midwest Symposium on Circuits and Systems, MWSCAS 2005
Country/Territory	United States
City	Cincinnati, OH
Period	05/8/7 → 05/8/10

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Access to Document

10.1109/MWSCAS.2005.1594135

Cite this

Sang, W. P., Sang, J. H., Eun, S. J., & Man, Y. S. (2005). Design of readout IC for uncooled infrared bolometer sensor using bias offset correction technique. In 2005 IEEE International 48th Midwest Symposium on Circuits and Systems, MWSCAS 2005 (pp. 452-455). [1594135] (Midwest Symposium on Circuits and Systems; Vol. 2005). https://doi.org/10.1109/MWSCAS.2005.1594135

Design of readout IC for uncooled infrared bolometer sensor using bias offset correction technique. / Sang, Won Park; Sang, Joon Hwang; Eun, Sik Jung; Man, Young Sung.

2005 IEEE International 48th Midwest Symposium on Circuits and Systems, MWSCAS 2005. 2005. p. 452-455 1594135 (Midwest Symposium on Circuits and Systems; Vol. 2005).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Sang, WP, Sang, JH, Eun, SJ & Man, YS 2005, Design of readout IC for uncooled infrared bolometer sensor using bias offset correction technique. in 2005 IEEE International 48th Midwest Symposium on Circuits and Systems, MWSCAS 2005., 1594135, Midwest Symposium on Circuits and Systems, vol. 2005, pp. 452-455, 2005 IEEE International 48th Midwest Symposium on Circuits and Systems, MWSCAS 2005, Cincinnati, OH, United States, 05/8/7. https://doi.org/10.1109/MWSCAS.2005.1594135

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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.",

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AB - 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.

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

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