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Proceedings Paper

Design of readout circuit for microcantilever-based ripple uncooled infrared focal plane arrays
Author(s): Junmin Cao; Zhongjian Chen; Wengao Lu; Yacong Zhang; Ke Lei; Baoying Zhao
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Paper Abstract

A readout integrated circuit (ROIC) for uncooled microcantilever infrared focal plane arrays (IRFPAs) based on capacitive readout is proposed. The ROIC is optimized according to noise modeling and analysis to reduce noise. An experimental chip of 16×16 FPAs readout circuit has been designed and fabricated using 0.35um CMOS technology. The measurement results showed that the power dissipation is 16.5mW from a 5V supply voltage at 50Hz frame rate, the linearity is 99.2% at the typical mode; the uniformity is larger than 97% and the equivalent noise charge (ENC) is below 150e. It is believed that the ROIC has a great potential in the applications of large-scale micro-cantilever-based uncooled IRFPAs.

Paper Details

Date Published: 5 August 2009
PDF: 6 pages
Proc. SPIE 7383, International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications, 73834J (5 August 2009); doi: 10.1117/12.836710
Show Author Affiliations
Junmin Cao, Peking Univ. (China)
Zhongjian Chen, Peking Univ. (China)
Wengao Lu, Peking Univ. (China)
Yacong Zhang, Peking Univ. (China)
Ke Lei, Peking Univ. (China)
Baoying Zhao, Peking Univ. (China)


Published in SPIE Proceedings Vol. 7383:
International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications
Jeffery Puschell; Hai-mei Gong; Yi Cai; Jin Lu; Jin-dong Fei, Editor(s)

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