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Proceedings Paper

Low-bias CTIA multiplexer for 1024-element InGaAs line sensors
Author(s): Walter F. Kosonocky; William E. Kleinhans; Chung Lau; Krishna Rao Linga; Mark T. Lourie
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Paper Abstract

A design is presented for 512-element CTIA multiplexer developed for readout of an array of 1024-element InGaAs detectors for operation with a bias voltage in the range of +/- 10 mV. This multiplexer can be operated with a left-to-right or right-to-left scan, a non- destructive sequential readout with line-by-line selectable detector reset, and with or without input-MOSFET-threshold uniformity correction. The optical integration time in the range from 20 ms to 10 min is selectable in multiples of 20 to 40 ms line times. The multiplexer cell architecture includes a differential CTIA with open-loop gain of about 5000, a CDS circuit, and two unity-grain buffer amplifiers.

Paper Details

Date Published: 23 June 1994
PDF: 20 pages
Proc. SPIE 2226, Infrared Readout Electronics II, (23 June 1994); doi: 10.1117/12.178480
Show Author Affiliations
Walter F. Kosonocky, New Jersey Institute of Technology (United States)
William E. Kleinhans, Valley Oaks Semiconductor, Inc. (United States)
Chung Lau, Valley Oaks Semiconductor, Inc. (United States)
Krishna Rao Linga, Epitaxx Inc. (United States)
Mark T. Lourie, Epitaxx Inc. (United States)


Published in SPIE Proceedings Vol. 2226:
Infrared Readout Electronics II
Eric R. Fossum, Editor(s)

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