기준신호 보상회로를 이용한 더블 샘플링 방식의 비냉각형 볼로미터 검출회로 설계에 관한 연구A Study on Double Sampling Design of CMOS ROIC for Uncooled Bolometer Infrared Sensor using Reference Signal Compensation Circuit
- Other Titles
- A Study on Double Sampling Design of CMOS ROIC for Uncooled Bolometer Infrared Sensor using Reference Signal Compensation Circuit
- Authors
- 배영석; 정은식; 오주현; 성만영
- Issue Date
- 2010
- Publisher
- 한국전기전자재료학회
- Keywords
- ROIC; FPN; Differential delta sampling; Reference signal compensation circuit
- Citation
- 전기전자재료학회논문지, v.23, no.2, pp.89 - 92
- Indexed
- KCI
- Journal Title
- 전기전자재료학회논문지
- Volume
- 23
- Number
- 2
- Start Page
- 89
- End Page
- 92
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/117729
- ISSN
- 1226-7945
- 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.
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