%0 Journal Article
%T Gain-Programmed Amplifier Based on AD8402 Digital Potentiometer<br>基于数字电位器AD8402的程控增益系统
%A LIU Chen-xia
%A FU Yu-tian
%A <br>刘晨霞
%A 傅雨田
%J 红外
%D 2007
%I 
%X After Comparing some other architectures of different digital potentiometers, a gainprogrammed amplifier based on an AD8402 digital potentiometer which can set offset voltage is presented. The hardware principle and software design of this method are described and some notices for using AD8402 are given. The gain-programmed amplifier has a simple hardware architecture , high quality, low price and widespread availability.
%K gain-programmmed
%K SPI bus
%K digital potentiometer
%K AD8402<br>程控增益
%K SPI总线
%K 数字电位器
%K AD8402
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=3723000AE493FCE650601982177048B1&aid=B33DE72B197490BC98939AE4B396D189&yid=A732AF04DDA03BB3&vid=D3E34374A0D77D7F&iid=E158A972A605785F&sid=EA389574707BDED3&eid=DB817633AA4F79B9&journal_id=1672-8785&journal_name=红外&referenced_num=0&reference_num=4