Share Email Print
cover

Proceedings Paper

Noise reduction strategy for hybrid IR focal-plane arrays
Author(s): Albert M. Fowler; Ian Gatley
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The low background performance of most infrared systems has been limited by the read noise of the focal plane array (FPA). In many cases the cause has been attributed to the use of MOSFETS or to the detector itself. In this paper we describe a multiple correlated sampling technique and demonstrate noise improvements by a factor of 9 over conventional readout techniques in use today. The FPA under discussion is a `Source Follower per Detector' or SFD type readout structure; specifically, the Santa Barbara Research Center 58 X 62 InSb FPA and the Hughes Technology Center (HTC) 256 X 256 PtSi FPA. The quoted read noise for the SBRC FPA (typically 400 electrons rms) has been reduced to 45 electrons rms using this technique.

Paper Details

Date Published: 1 November 1991
PDF: 7 pages
Proc. SPIE 1541, Infrared Sensors: Detectors, Electronics, and Signal Processing, (1 November 1991); doi: 10.1117/12.49326
Show Author Affiliations
Albert M. Fowler, National Optical Astronomy Observatories (United States)
Ian Gatley, National Optical Astronomy Observatories (United States)


Published in SPIE Proceedings Vol. 1541:
Infrared Sensors: Detectors, Electronics, and Signal Processing
T. S. Jay Jayadev, Editor(s)

© SPIE. Terms of Use
Back to Top