Design of readout circuit for microcantilever-based ripple uncooled infrared focal plane arrays

Junmin Cao; Zhongjian Chen; Wengao Lu; Yacong Zhang; Ke Lei; Baoying Zhao

doi:10.1117/12.836710

5 August 2009 Design of readout circuit for microcantilever-based ripple uncooled infrared focal plane arrays

Junmin Cao, Zhongjian Chen, Wengao Lu, Yacong Zhang, Ke Lei, Baoying Zhao

Proceedings Volume 7383, International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications; 73834J (2009) https://doi.org/10.1117/12.836710
Event: International Symposium on Photoelectronic Detection and Imaging 2009, 2009, Beijing, China

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.

Citation Download Citation

Junmin Cao, Zhongjian Chen, Wengao Lu, Yacong Zhang, Ke Lei, and Baoying Zhao "Design of readout circuit for microcantilever-based ripple uncooled infrared focal plane arrays", Proc. SPIE 7383, International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications, 73834J (5 August 2009); https://doi.org/10.1117/12.836710

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