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Proceedings Paper

Low-noise 256 x 256 10-kelvin staring FPA
Author(s): Nancy A. Lum; James F. Asbrock; Rebekah White; Frank Augustine; A. Hoffman; Sven C. Nystrom
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Paper Abstract

Cryogenic spe telescopes such as the Space Infrared Telescope Faility (SIRTF) require large-area focal plane arrays (FPAs) with high sensitivity. This places large demands on readout arrays to simultaneously provide low noiseand high responsivity at low power dissipation. The Hughes Technology Center (HTC) has developed a low-noise 256x256-pixel readout array applicable to the SIRTF visible Fine Guidance Sensor (FGS), short-wavelength infrared array camera (IRAC), and Infrared Spectrometer (IRS). The readout is designed to operate at temperatures below 10 K. The unit cell employs a switched source follower-per-detector design wherein signals are multiplexed onto four outputs while row and column scanners can flexibly address small block portions of the array to conserve power. The readout has recently beenfabricated using the standard cryo-CMOS process developed at Hit specifically for low-temperawre, low-noise operation. The readout can be used with Si PIN, InSb, and Si impurity-band-conduction (IBC) detector arrays.

Paper Details

Date Published: 1 July 1992
PDF: 6 pages
Proc. SPIE 1684, Infrared Readout Electronics, (1 July 1992); doi: 10.1117/12.60494
Show Author Affiliations
Nancy A. Lum, Hughes Aircraft Co. (United States)
James F. Asbrock, Hughes Aircraft Co. (United States)
Rebekah White, Hughes Aircraft Co. (United States)
Frank Augustine, Hughes Aircraft Co. (United States)
A. Hoffman, Hughes Aircraft Co. (United States)
Sven C. Nystrom, Hughes Aircraft Co. (United States)

Published in SPIE Proceedings Vol. 1684:
Infrared Readout Electronics
Eric R. Fossum, Editor(s)

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