一种高分辨率自校准单积分型A/D转换器  

A High-Resolution Self-Calibrated Single Slope Integration ADC

作　　者：刘浩瑞[1] 王百鸣[2] 李昆华[2] 夏礼胜[1] 薛超杰[1] 

机构地区：[1]深圳大学光电子学研究所,广东深圳518060 [2]深圳大学信息工程学院EDA技术中心,广东深圳518060

出　　处：《微电子学》2009年第4期461-464,共4页Microelectronics

基　　金：国家自然科学基金重大研究计划资助项目(90407001)

摘　　要：提出一种具有自校准功能的单积分型高精度A/D转换器。分析了电路原理和电路结构,阐述了如何通过自校准功能提高积分型A/D转换器的性能;给出了A/D转换器结构和测试波形。测试结果表明,设计的A/D转换器采样率为3.3 kSPS,分辨率为14位,相对精度可达0.01%。A high-resolution self-calibrated single slope integration ADC was presented. Operational principle of the circuit and its structure were analyzed. Improvement on the performance of integration ADC with self-calibration method was described in detail. The circuit structure of the A/D converter was presented. Test results showed that the A/D converter had a sampling rate of 3. 3 kSPS and a resolution of 14 bits with a relative accuracy of 0. 01%.

关 键 词：A/D转换器 自校准 单积分 

分 类 号：TN792[电子电信—电路与系统]