Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2008, Vol. 19 ›› Issue (4): 241 doi: 10.1016/S1001-8042(08)60057-3

• ADVANCED NUCLEAR INSTRUMENTATION AND DETECTION • Previous Articles     Next Articles

Design and simulation of charge sensitive preamplifier with CMOS FET implemented as feedback capacitor Cfp

WEMBE TAFO Evariste1,2 SU Hong1,* GAO Yanni1 WU Ming1   

  1. 1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
    2 Department of Physics, University of Douala, Cameroon
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WEMBE TAFO Evariste SU Hong GAO Yanni WU Ming. Design and simulation of charge sensitive preamplifier with CMOS FET implemented as feedback capacitor Cfp.Nuclear Science and Techniques, 2008, 19(4): 241     doi: 10.1016/S1001-8042(08)60057-3

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.

Key words: Charge sensitive preamplifier, CMOS transistor, Feedback capacitor, Simulation