面向多功能模拟信号处理的开关电流型可重构模拟电路研究  

Switched-Current Technology Based Reconfigurable Analog Circuit for Multi-Function Analog Signal Processing

作　　者：王友仁[1] 祝鸣涛[1] 任晋华[1] 崔江[1] 林华[1] 

机构地区：[1]南京航空航天大学自动化学院,江苏南京210016

出　　处：《电子学报》2011年第5期1047-1052,共6页Acta Electronica Sinica

基　　金：国家自然科学基金(No.60871009);航空科学基金(No.2009ZD52045);南京航空航天大学基本科研业务费专项项目(No.NS2010086)

摘　　要：现有的离散时间型可重构模拟电路采用开关电容技术,存在功能有限、带宽低、与数字CMOS工艺不兼容等问题.本文提出了一种基于电流模取样数据技术的可重构模拟电路,能够与数字CMOS工艺技术兼容.设计了细粒度开关电流型可重构模拟单元,设计了面向开关电流型CAB互连的可编程网络结构.在4×2规模的可重构模拟阵列上,重构实现了三个典型模拟电路应用实例,实验结果证明了所设计开关电流型可重构模拟电路是有效的,能重构实现多种功能的模拟电路.Conventional discrete time mode reconfigurable analog circuits are designed with the switched capacitor technology,which have the disadvantage of function limitation,lower band pass,and being not compatible with digital CMOS process technology in hybrid integrated circuits.This paper presented a Reconfigurable Analog Circuit（RAC） based on Current Mode Sampled Data Technology（CMSDT）,which was fully compatible with the digital CMOS process.The Configurable Analog Block（CAB） based on switched current technology was developed,and the programmable interconnect network structure for the switched current CAB was proposed.Three analog circuits for application examples have been achieved respectively by reconfiguration in the 4×2 reconfigurable analog array.The simulation experimental results show that the designed reconfigurable analog circuit is effective and can realize multi-function analog circuit with reconfiguration.

关 键 词：模拟信号处理 可重构模拟电路 开关电流技术 可重构模拟单元 可编程开关网络 多功能电路 

分 类 号：TN402[电子电信—微电子学与固体电子学]