Design and simulation of charge sensitive preamplifier with CMOS FET implemented as feedback capacitor Cfp |
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| Authors: | WEMBE TAFO Evariste SU Hong GAO Yanni WU Ming |
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| Affiliation: | 1. Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China;Department of Physics,University of Douala,Cameroon
2. Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China |
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| Abstract: | In this paper,to design a new preamplifier for optimum performances with charged-particle or heavy-ion detectors,the CMOS FET is implemented as a feedback capacitor Cfp.so that the entire system should be built only with MOSFET.This work is a revolution design because to realize an ASIC for a preamplifier circuit,the capacitor will also be included.We succeed after a simulation to maintain a rise time less than 3 ns,the output resistance less than 94 Ω and the linearity almost good. |
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| Keywords: | Charge sensitive preamplifier CMOS transistor Feedback capacitor Simulation |
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