高精度A／D采集电路设计

摘要

介绍了高精度模数转换芯片AD7671的工作原理以及常用工作方式设置，并在此基础上阐述了基于AD7671进行声波信号高精度高速率采集的实现方法，同时给出了常见的硬件电路的电路图。%This paper introduces the operation principle and the mode set of the high precision A/D conversion chip AD7671, and on this basis, it elaborates the high accuracy and high speed acquisition methods based on the AD7671 in the acoustic acquisition, giving the common hardware circuit diagram.