It introduces a readout method and circuit design of a 10 - channel Switch - Capacitor Array ASIC for the PAD Array of Gas Electron Multiplier detector. The front - end readout electronics, the architecture of switch - capacitor array circuit, the ASIC design, and the test result of the chip are discussed. The 10 - channel chip can extend to more channels for large - scale PAD array of GEM detector.%介绍了GEM探测器阵列结构的一种读出方案,重点介绍了该读出方案中开关阵列芯片的设计.主要内容包括PAD前端读出电子学结构,开关电容阵列结构工作原理,开关阵列芯片设计,文章的最后给出了芯片测试结果.该10通道开关电容阵列芯片可以扩展为更多的通道,以满足更大规模的GEM探测器的阵列方式读出需要.
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