摘要
通过对数字电位器芯片研究和分析,同时结合低成本市场的需要,搭建硬件及软件平台,构建混合信号系统电路,从而扩展数字电位器的应用领域及范围。描述了数字电位器工作原理、特点、分类及广泛应用,阐述了与机械电位器相比,数字电位器的优点,同时也描述了数字电位器AD5272内部电路结构,在此基础上进一步提出了对数字电位器AD5272应用电路系统的设计。结果表明,在低成本的前提下,将数字电位器的性能及应用充分展示,同时验证了数字电位器更为经济实用。
Through the research and analysis to the digital potentiometer chip,at the same time combine with the low-cost market needs,to build the hardware and software platform,to construct mixed-signal system circuit,and to expand the applications and scope of the digital potentiometer.In this paper,the author describes the general working principle,characteristics,classification and widely application of digital potentiometer;explains the advantages of digital potentiometer,which is compared with the mechanical potentiometer,but also depicts the typical internal circuit structure of digital potentiometer AD5272.Based on the further proposed application of the digital potentiometer,the circuit system of the AD5272 was designed.The results show that in the low-cost premise,the performance and application of the digital potentiometer has been fully demonstrated,and the more economical and practical of digital potentiometer has been verified.
出处
《电子设计工程》
2012年第7期181-183,186,共4页
Electronic Design Engineering
