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
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SBRC-190 的特性:用于红外探测器阵列的多增益低温读出多路复用器
DOI:
10.1117/12.458589
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发表时间:
2003
期刊:
影响因子:
--
通讯作者:
Dzung T. Hoang
中科院分区:
文献类型:
--
作者:
J. Farhoomand;D. L. Sisson;L. Yuen;Dzung T. Hoang
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.