Design Of Hybrid Circuits For Cryogenic Sensor-Amplifier Interfaces

William L. Jones

doi:10.1117/12.935195

Abstract

The design of a hybrid circuit frequency compensation module for use with various infrared instrumentation systems is discussed. The design objective is to achieve essentially the same preamplifier response over a given range of frequencies both at high-level output and at low-level output, when operating at the same temperature as a cryogenic sensor (detector). The design procedure requires that the temperature and/or voltage variation of resistor values used in the module be either (a) measured directly or (b) extracted from comparison of measured and computer-generated frequency response curves. It is found that a computer-aided design procedure using iterative analysis with an ac network analysis program results in reduced design and development time. Also, this procedure leads to a better understanding of problems associated with cryogenic sensor-amplifier interfaces.

Citation Download Citation

William L. Jones, William L. Jones, } "Design Of Hybrid Circuits For Cryogenic Sensor-Amplifier Interfaces", Proc. SPIE 0395, Advanced Infrared Sensor Technology, (30 November 1983); doi: 10.1117/12.935195; https://doi.org/10.1117/12.935195

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