概述模数转换器（又称Ａ／Ｄ转换器或ＡＤＣ）是一种将连续的模拟量转换成离散的数字量的一种电路或器件。模拟信号转换成数字信号一般需要经过采样保持和量化编码两个过程。本章包括多种采样类型的通用和专用ＡＤＣ的技术资料和选择指南。ＡＤＩ公司制造的模数转换功能器件和 Overview Analog-to-digital converters (aka A / D converters or ADCs) are a type of circuit or device that converts continuous analog quantities into discrete digital quantities. Analog signals into digital signals generally need to go through two sample-and-hold encoding process. This chapter contains technical information and selection guides for general and specialized ADCs for a wide range of sample types. Analog-to-Digital Conversion Devices and Devices from Analog Devices