一种新的高性能开关电容排序电路  

Novel High Performance Switched Capacitor Sorter Based on Magnitude

作　　者：林谷[1] 石秉学[1] 

机构地区：[1]清华大学微电子学研究所

出　　处：《Journal of Semiconductors》1998年第8期620-624,共5页半导体学报（英文版）

基　　金：国家自然科学基金;高校博士点基金

摘　　要：本文首次提出了一种新的高性能开关电容排序电路．它采用开关电容技术跟踪／保持输入信号，通过全对称的求大网络求最大，最后分时输出排序结果．该电路结构简单、灵活，规模易扩展．ＰＳＰＩＣＥ模拟结果表明，该电路具有分辨率高、排序范围大等特点．由于求大网络全并行工作，使得电路工作速度快．另外，该电路排序的时间复杂度仅为Ｏ（３ｎ），ｎ为输入端数，这十分有利于多输入端排序．由于采用成熟的开关电容技术，该电路同数字ＣＭＯＳ工艺相兼容，易于模拟、数字混合集成。Abstract A novel high performance switched capacitor sorter based on magnitude is firstly proposed. In this sorter, switched capacitor circuit is used to track/hold input signals. High resolution symmetric WTA (Winner Take All) network is employed to find maximum voltage level. Then, sorted results are transmitted in time shared way.The structure of this sorter is simple, flexible and its scale can be easily extended. PSPICE simulation shows that the sorting resolution is better than 5mV and the range of input voltage level is wide. Since switched capacitor structure is employed, this sorter is able to be compatible with a digital CMOS process and easily implemented in VLSI technology.

关 键 词：VLSI 开关电容型 VLSI 排序电路 设计 

分 类 号：TN710.02[电子电信—电路与系统] TN47