High dynamic range low-noise focal plane readout for VLWIR applications implemented with current mode background subtraction

Guang Yang; Chao Sun; Timothy Shaw; Christopher J. Wrigley; Pavani Peddada; Edward R. Blazejewski; Bedabrata Pain

doi:10.1117/12.321761

14 September 1998 High dynamic range low-noise focal plane readout for VLWIR applications implemented with current mode background subtraction

Guang Yang, Chao Sun, Timothy Shaw, Christopher J. Wrigley, Pavani Peddada, Edward R. Blazejewski, Bedabrata Pain

Author Affiliations +

Proceedings Volume 3360, Infrared Readout Electronics IV; (1998) https://doi.org/10.1117/12.321761
Event: Aerospace/Defense Sensing and Controls, 1998, Orlando, FL, United States

Abstract

Design and operation of a low noise CMOS focal pa;ne readout circuit with ultra-high charge handling capacity is presented. Designed for high-background, VLWIR detector readout, each readout unit cell use an accurate dynamic current memory for automatic subtraction of the dark pedestal in current domain enabling measurement of small signals 85 dB below the dark level. The redout circuit operates with low-power dissipation, high linearity, and is capable of handling pedestal currents up to 300 nA. Measurements indicate an effective charge handling capacity of over 5 X 10⁹ charges/pixel with less than 10⁵ electrons of input referred noise.

Citation Download Citation

Guang Yang, Chao Sun, Timothy Shaw, Christopher J. Wrigley, Pavani Peddada, Edward R. Blazejewski, and Bedabrata Pain "High dynamic range low-noise focal plane readout for VLWIR applications implemented with current mode background subtraction", Proc. SPIE 3360, Infrared Readout Electronics IV, (14 September 1998); https://doi.org/10.1117/12.321761

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