【摘要】 介绍了基于AD7710的直流电压表的硬件设计和软件设计。阐述了AD7710的模拟电压输入、基准电压输入以及与微处理器的数字接口电路。分析介绍了表的采样滤波、快速平均、自动量程转换与校准技术。更多还原

【Abstract】 In the paper, the hardware and software of the DC voltage meter based on AD7710, is proposed. The circuit of analog input, reference input and the serial digital interface with microcomputer of AD7710,is presented. The technology of digital filtering、calibrating、fast averaging and automatic range switching, is detailed.更多还原