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- W2356372425 abstract "In hybrid focal plane arrays,the coupling between detector and readout circuit is realized by input circuit.In this paper,in order to study the influence of the preamplifier on detector and amplifier system,the simulation experiments had been done with a preamplifier which made by separate transistors.Experiment indicates that the noise of input stage is main factor which leads to the decrease of the SNR of the detector,so appropriate amplifier which has certain noise performance should be selected to match the detector.And then,the conditions of the coupling in FPA between the detector with the direct injection(DI) circuit and capacitive transimpedance amplifier(CTIA) have been studied.The concept of the critical input resistance was put forward in this paper.Experiment indicates that the FPA will gain high injection efficiency only when the input resistance is lower than the critical value(106 Ω for GaN p-i-n detector)." @default.
- W2356372425 created "2016-06-24" @default.
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- W2356372425 date "2006-01-01" @default.
- W2356372425 modified "2023-09-27" @default.
- W2356372425 title "Input circuit of focal plane arrays" @default.
- W2356372425 hasPublicationYear "2006" @default.
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