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Proceedings Paper

A high fill-factor high-SNR CMOS image sensor for IR camera applications
Author(s): Varun Shenoy; Daniel McBride; Sungyong Jung; Hyejin Moon; Sang-Yeon Cho
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Paper Abstract

A high-fill factor/high-SNR CMOS readout integrated circuit (ROIC) array is designed for high dynamic range infrared imaging systems. The designed ROIC array uses a single reference photodiode that is routed to each unit cell in the array to subtract the dark current for high SNR and high fill factor. The achieved average SNR is 80 dB and the fill factor is 28% with a 25 x 25 μm2 unit cell size. With this new unit cell and routing approach, the size of the unit cell is reduced by 300% compared to other high SNR circuits. The maximum power consumption per unit pixel is 500nW.

Paper Details

Date Published: 20 May 2011
PDF: 6 pages
Proc. SPIE 8012, Infrared Technology and Applications XXXVII, 80120J (20 May 2011); doi: 10.1117/12.884212
Show Author Affiliations
Varun Shenoy, The Univ. of Texas at Arlington (United States)
Daniel McBride, The Univ. of Texas at Arlington (United States)
Sungyong Jung, The Univ. of Texas at Arlington (United States)
Hyejin Moon, The Univ. of Texas at Arlington (United States)
Sang-Yeon Cho, New Mexico State Univ. (United States)

Published in SPIE Proceedings Vol. 8012:
Infrared Technology and Applications XXXVII
Bjørn F. Andresen; Gabor F. Fulop; Paul R. Norton, Editor(s)

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