电子器件Issue(1)：36-40,5.DOI:10.3969/j.issn.1005-9490.2016.01.008
基于C51的多通道高精度电压转换模块设计
Design of Multi Channel High Precision Voltage Conversion Module Based on C51
摘要
Abstract
We set up a multi channel high precision voltage conversion module in order to meet the requires of cali⁃bration thermocouple and after level controller in different industrial field,thus realizing high precision temperature measurement. This module generates the standard bipolar signal which is accordant with the after level measurement and control requirements. The hardware system of module uses C8051F064 as the control core,in which sets up lin⁃ear operational amplifier circuits with high performance chip such as AD8572 and the military level precision dis⁃crete device,in which achieves high resolution output with 16 DA converter MAX5541. According to test the physi⁃cal output by given 0~10 V input voltage point by point,the measured results show that the module has good stabili⁃ty,high conversion accuracy(up to ±0.01%),fully meet the needs of different industrial field.关键词
电压转换模块/高精度/实物测试/SPI总线/线性度Key words
voltage conversion module/high-precision,SPI bus/physical test/linearity分类
信息技术与安全科学引用本文复制引用
王志伟,陆锦军..基于C51的多通道高精度电压转换模块设计[J].电子器件,2016,(1):36-40,5.基金项目
江苏省科技厅前瞻性产学研研究专项基金项目 （）
