基于20位DAC—AD5791的高精度电压源的设计  

Based on the 20 DAC- AD5791 design of high precision voltage source

作　　者：薛巨峰[1] 李壮[1] 鲁志军[2] 

机构地区：[1]东北林业大学机电工程学院,哈尔滨150040 [2]黑龙江省计量检定测试院,哈尔滨150036

出　　处：《电子技术（上海）》2015年第9期59-62,共4页Electronic Technology

摘　　要：为设计出高精度的标准电压源,本文通过标准电压源的生成过程来分析基准电压源对数模转换器的要求从而选择AD5791。并通过AD5791的硬件特性和软件特性来克服以往数模转换器作为基准源偏置电流中的失调现象,以及应用其特殊优越性能在设计高精度电压源系统中输出0.00000V到10.00000v的电压。并通过试验校验其准确性。To design a high precision standard voltage source, this article through the analysis of the generation process to standard voltage source reference voltage source to the requirement of digital to analog converter to choose AD5791. And through the AD5791 characteristics of hardware and software to overcome past Digital to analog converter as benchmark source of bias current imbalance phenomenon, as well as the application of the special superior performance in the design of high precision voltage source in the system output voltage of 0.00000 V to 0.00000 V. And through the experiment verify its accuracy.

关 键 词：电压源 AD5791特性 高精度 校验 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]