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Proceedings Paper

Application Of JFets To Low Background Focal Planes In Space
Author(s): F. J. Low
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Paper Abstract

Self-heated JFets, suitable for use in low background focal planes cooled to cryogenic temperatures, have been developed and tested. For feedback resistances of 2 E 10 ohm at 4.2K the noise contributed by the amplifier is less than the Johnson noise of 2 μv/Hz1/2. Excellent dc stability has been demonstrated at a power level of 0.1 mw per JFet. These devices offer the possibility of much improved performance, greater reliability and less sensitivity to nuclear radiation when compared to MosFets.

Paper Details

Date Published: 27 July 1981
PDF: 5 pages
Proc. SPIE 0280, Infrared Astronomy: Scientific/Military Thrusts and Instrumentation, (27 July 1981); doi: 10.1117/12.931946
Show Author Affiliations
F. J. Low, University of Arizona (United States)


Published in SPIE Proceedings Vol. 0280:
Infrared Astronomy: Scientific/Military Thrusts and Instrumentation
Nancy W. Boggess; Howard J. Stears, Editor(s)

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