一种16位双斜率积分AID转换器  

A kind of 16-bit Dual-slope Integral A/D Converter

作　　者：吕梦琴[1] 吕荣宽 

机构地区：[1]电子科技大学电子工程学院,成都611731

出　　处：《自动化信息》2014年第3期19-21,共3页Automation Information

摘　　要：本文在0．18umCMOS工艺下研究了一种高分辨率的双斜率式积分A／D转换器。通过理论分析和实验仿真，构造了一个分辨率达16位、精度达0．5％的A／D转换电路。这个A／D转换电路在1MHz时钟频率下的转换周期为109ms。给出了电路仿真结果，并分析了这种电路结构的可行性及优缺点。In this paper, a high resolution dual-slope integrating analog-to-digital converter was researched by using the tech- nology of 0.18urn COMS. By means of the theoretical analysis and experimental simulation, a 16-bit A/D conversion circuit with the accuracy of 0.5% was constructed. The conversion cycle of this A/D conversion circuit is 109ms in the clock frequency of 1 MHz. The simulation results of the A/D converter were given and analyzed to demonstrate its feasibility, merits and demerits.

关 键 词：双斜率积分 A D转换器 分辨率 转换周期 

分 类 号：TN911[电子电信—通信与信息系统]