Application Of JFets To Low Background Focal Planes In Space

F. J. Low

doi:10.1117/12.931946

27 July 1981 Application Of JFets To Low Background Focal Planes In Space

F. J. Low

Proceedings Volume 0280, Infrared Astronomy: Scientific/Military Thrusts and Instrumentation; (1981) https://doi.org/10.1117/12.931946
Event: 1981 Technical Symposium East, 1981, Washington, D.C., United States

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.

Citation Download Citation

F. J. Low "Application Of JFets To Low Background Focal Planes In Space", Proc. SPIE 0280, Infrared Astronomy: Scientific/Military Thrusts and Instrumentation, (27 July 1981); https://doi.org/10.1117/12.931946

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