Browse > Article
http://dx.doi.org/10.4313/JKEM.2010.23.2.089

A Study on Double Sampling Design of CMOS ROIC for Uncooled Bolometer Infrared Sensor using Reference Signal Compensation Circuit  

Bae, Young-Seok (고려대학교 전기공학과)
Jung, Eun-Sik (고려대학교 전기공학과)
Oh, Ju-Hyun (고려대학교 전기공학과)
Sung, Man-Young (고려대학교 전기공학과)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.23, no.2, 2010 , pp. 89-92 More about this Journal
Abstract
A bolometer sensor used in an infrared thermal imaging system has many advantages on the process because it does not need a separate cooling system and its manufacturing is easy. However the sensitivity of the bolometer is low and the fixed pattern noise(FPN) is large, because the bolometer sensor is made by micro electro mechanical systems (MEMS). These problems can be fixed-by using the high performance readout integrated circuit(ROIC) with noise reduction techniques. In this paper, we propose differential delta sampling circuit to remove the mismatch noise of ROIC itself, the FPN of the bolometer. And for reduction of FPN noise, the reference signal compensation circuit which compensate the reference signal by using on-resistance of MOS transistor was proposed.
Keywords
ROIC; FPN; Differential delta sampling; Reference signal compensation circuit;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 H. H. Shin, S. J. Hwang, E. S. Jung, S. W. Yu, and M. Y. Sung, “A readout IC design for the FPN reduction of the bolometer in an IR image sensor", Trans. Electr. Electron. Mater., Vol. 8, No. 5, p. 196, 2007.   DOI
2 S. G. Kang, D. H. Woo, and H. C. Lee, “Multiple integration method for high signalto-noise ratio readout integrated circuit", IEEE Transactions on Circuits and Systems, Vol. 52, No. 9, p. 553, 2005.   DOI