Digitally programmable high-order current-mode universal filters

被引：0
|
作者：
Hussain A. Alzaher
Noman A. Tasadduq
Osama Al-Ees
机构：
[1] King Fahd University of Pettroleum & Minerals,Electrical Engineering Department
来源：
Analog Integrated Circuits and Signal Processing | 2011年 / 67卷
关键词：
CMOS mixed analog/digital systems; Current-mode circuits; Active filters; High order filter;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
New high-order current-mode (CM) filter topologies capable of providing all functions simultaneously are presented. The proposed filters are based on digitally controlled current amplifiers and unity gain voltage buffers. The gains of the current amplifiers are digitally programmed to adjust the filters’ transfer function coefficients. It is shown that the proposed approach results in more efficient realizations compared with its counterparts based on other CM active elements. Using BSIM3 0.18 μm CMOS models, simulation results of a fourth-order universal filter are provided.
引用
收藏
页码：179 / 187
页数：8
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