摘要
本文介绍了环路供电4-20mA数模转换器AD421和HART 调制解调器20C15的接口,并给出设计步骤。
:In this application deals primarily the interface with the interface between the AD421 loop powered 4-20mA DAC and the 20C15 HART modem and the necessary steps to implement a HART compliant instrument。
出处
《微计算机信息》
2001年第12期35-35,41,共2页
Control & Automation