Charge voltage conversion amplification circuit and electronic device

Abstract

The invention belongs to the technical field of circuits, and discloses a charge voltage conversion amplification circuit and an electronic device. The charge voltage conversion amplification circuitis used for amplifying a charge signal output by a charge detector and converting the amplified charge signal into a voltage signal of a preset specification. The charge voltage conversion amplification circuit comprises an amplification unit, a conversion unit, a feedback unit and an output unit, wherein the amplification unit is used for being connected with the detector and amplifying the charge signal output by the detector; the conversion unit is used for converting the charge signal amplified by the amplification unit into the voltage signal of the preset specification; the input end ofthe feedback unit is connected to the output end of the conversion unit, and the output end of the feedback unit is connected to the input end of the amplification unit; and the input end of the output unit is connected to the output end of the amplifier, and the output unit is used for processing the voltage signal after conversion by the conversion unit and outputting the voltage signal. The charge voltage conversion amplification circuit can reduce the generation of noises and improve the processing success rate of the charge signal.

Description

technical field [0001] The present application belongs to the technical field of circuits, relates to the technical field of charge signal processing, and in particular relates to a charge-voltage conversion amplifier circuit and an electronic device. Background technique [0002] In particle physics experiments, fast and accurate measurement of weak charge signals is a key factor affecting experimental results. Usually in a high-precision particle physics experiment system, the charge signal output by the detector is very weak, some even in the order of flying library, but the event rate is very high, and the conventional charge processing circuit cannot quickly process such a high event rate. A small signal causes the signal to be easily overwhelmed by noise, which greatly affects the accuracy of the entire experimental system and thus affects the experimental conclusion. Contents of the invention [0003] The purpose of this application is to solve the problem that the...

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Problems solved by technology

[0003] The purpose of this application is to solve the problem that the detected charge signal in the conventional charge processing circuit is easily completely submerged by noise, thus providing a charge-to-voltage conversion amplifier circuit and electronic device, wherein the charge-to-voltage conversion amplifier circuit detects The charge signal is amplified by a two-stage amplifier circuit. At the same time, the generation of noise is minimized in terms of circuit design and device selection, so that the charge signal is completely submerged by noise and the success rate of charge signal processing is improved.

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