Characterization of SBRC-190: a multi-gain, cryogenic readout multiplexer for IR detector arrays

Details Characterization of SBRC-190: a multi-gain, cryogenic readout multiplexer for IR detector arrays Characterization of SBRC-190: a multi-gain, cryogenic readout multiplexer for IR detector arrays

Feb 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003spie.4857..144f&link_type=abstract

Airborne Telescope Systems II. Edited by Ramsey K. Melugin, Hans-Peter Roeser . Proceedings of the SPIE, Volume 4857, pp. 144-1

Physics

3

Scientific paper

SBRC-190 readout multiplexer is a 1×32, multi-gain, capacitive transimpedance amplifier (CTIA) especially suitable for use with infrared detector arrays requiring low-bias levels--such as Ge:Ga far infrared detector arrays. The unit-cell design employs a feedback loop which keeps the bias across the detector constant and, therefore, prevents debiasing--a critical requirement for far infrared detectors. We have tested a number of these multiplexers at various cryogenic temperatures, down to 1.7K. In this presentation we will report the results of our tests and will discuss gain, uniformity, and read noise of the bare mux under correlated-double sampling at 4.2K.

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