电流模式算法型A/D转换器的电路结构研究  

Study on Current-Mode Arithmetic A/D Converter Circuits

作　　者：洪岳炜[1] 王百鸣[2] 

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》2008年第6期774-777,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);深圳市科技计划资助项目

摘　　要：提出了一种基于电流模式的算法型A/D转换器电路结构,分析说明了其基本原理和具体实现方法;构造了一个6位50 MSPS算法型A/D转换器,给出了在OrCAD/PSpice 10.5下的仿真结果,得出用电流模式电路设计高速A/D转换器有优势的结论。The performance of current-mode circuit is better than that of the traditional voltage-mode circuit in high frequency area. An arithmetic ADC structure based on current-mode circuit was presented. Its operational principle was analyzed and specific techniques for implementation were described in detail. A 6-bit 50 MSPS arithmetic A/D converter was constructed, and simulation was made by using OrCAD/PSpice 10. 5, It is concluded that the current-mode circuit has its advantages in designing high frequency ADC.

关 键 词：电流模式 A/D转换器 模拟余量 

分 类 号：TN792[电子电信—电路与系统]