集成模拟开关是一种重要的电子元件,它在数据采集、采样保持、信号转换以及通信技术等方面都得到了广泛的应用。近年来,随着CMOS工艺的发展,电路集成度的提高,已经研制成功了一系列系采用CMOS工艺的模拟开关,用以取代以往的机械触点开关和分立元件构成的开关,使电路设计人员在研制新型的电子装置时得到了极大的方便。本文简述CMOS模拟开关的基本结构,着重介绍一些应用的实例。 Integrated analog switch is an important electronic components, it has been widely used in data acquisition, sample and hold, signal conversion and communication technologies. In recent years, with the development of CMOS technology and the improvement of circuit integration, a series of analog switches using CMOS technology have been successfully developed to replace the switch made of the conventional mechanical contact switches and discrete components to enable the circuit designers In the development of new electronic devices has been a great convenience. This article briefly describes the basic structure of CMOS analog switches, highlighting some examples of applications.