An Optimal Gated Integrator Circuitrybased On Dummy Switch,For High-Resolution Energy Spectroscopy.
Journal Title: IOSR Journals (IOSR Journal of Electrical and Electronics Engineering) - Year 2018, Vol 13, Issue 2
Abstract
Modern experiments in the physical sciences use electronics to monitor, digitize and store analog signals. We will consider the analog front-end of ion beam detector whose job is to solve the ballistic deficit problem by integrating the signal until all the charge is collected from the detector. Such a circuit is called Gated Integrator. The key element that actually stores the analog signal is a capacitor. The stored signal is damaged by noise due to charge injection, clock feedthrough and leackage current. Several works have been done to prevent these noises. In this paper, to ensure nonlinearity of the Gated integrator less than 0.03%, a novel circuit based on two switch transistors, to cancel the leakage current in the reset switch, is added with a dummy switch,which allows toreduce the charge injection up to 0.6mV.
Authors and Affiliations
Folla Kamdem Jérôme, Wembe Tafo Evariste, Djamet Yimga Arnaudand, Essimbi Zobo Bernard
Keywords
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