可程控精密直流参考源的设计  

Design of programmable precision DC reference source

作　　者：赵红红[1] 王林斗[1] 

机构地区：[1]天津大学,天津300072

出　　处：《电子测量技术》2006年第4期91-92,共2页Electronic Measurement Technology

摘　　要：介绍了单片低功耗,具有片内自校准功能的20bit串行DAC1220数/模转换器在双极性DC参考源中的设计应用,并给出了与AT89C52系列单片机接口电路。This article introduced the design of a programmable dual DC reference source, which is based on a 20bit serial D/A chip, with the characteristics of low power consumption and on chip self calibration function. The interface circuit ＂between DAC1220 and AT89C52 was presented.

关 键 词：串行接口 片内自校准 SPI总线 

分 类 号：TN792[电子电信—电路与系统]