摘要
简要介绍了14位串/并行数模转换器件AD7840的功能、特性及其基本线结构和引脚功能,给出了采用AD7840设计的LED程控电流源的D/A转换方案及电路。
AD7840 is the 14 - bit serial and parallel converter that U. S. AD Company produces. The paper briefly introduces its functions, characteristics, basic structures and pin function, points out the project and circuit of A/D conversion project which AD7840 is used to design in program controlled current source.
出处
《四川文理学院学报》
2007年第5期65-68,共4页
Sichuan University of Arts and Science Journal
基金
重庆市科技攻关重点项目"LED多参数检测设备研制"(CSTC
2005AA4006A4)
