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

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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 recon...