Low-power multiplexed lead salt arrays

Leon Wenger; Stephen D. Gaalema

doi:10.1117/12.138980

5 January 1993 Low-power multiplexed lead salt arrays

Leon Wenger, Stephen D. Gaalema

Proceedings Volume 1762, Infrared Technology XVIII; (1993) https://doi.org/10.1117/12.138980
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

To maintain low cost and efficient cooling as more elements are required for detector arrays used in thermal imaging systems, multiplexing of the array provides an efficient means to reduce the number of leads exiting the package. Lead Selenide (PbSe) and Lead Sulfide (PbS) linear detector arrays are now utilized with a newly designed CMOS multiplexer which provide variable integration rates and ultra-low power consumption. Efficient thermoelectric cooling is possible with a multiplexer dissipating of less than one milliwatt. On chip adaptive detector biasing is used to improve detector response uniformity. A discussion of the design, operation and performance of the multiplexer will be presented along with a video of a thermal imaging system using a Lead Selenide detector array.

Citation Download Citation

Leon Wenger and Stephen D. Gaalema "Low-power multiplexed lead salt arrays", Proc. SPIE 1762, Infrared Technology XVIII, (5 January 1993); https://doi.org/10.1117/12.138980

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