A low-power Gm-C low pass filter for mobile applications

被引：0

作者：

Lakshmi, M. Santhana ^{[1
]}

Vanathi, P. T. ^{[1
]}

机构：

[1] PSG Coll Technol, Dept Elect & Commun Engn, Coimbatore 641004, Tamil Nadu, India

来源：

JOURNAL OF SCIENTIFIC & INDUSTRIAL RESEARCH | 2010年 / 69卷 / 10期

关键词：

Common mode feedback; Current multiplier; Low pass filter; Transconductor;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study presents a high performance complementary metal oxide semiconductor (CMOS) transconductor used in a multimode channel selection filter for mobile applications. The design employs a voltage to current (V-I) converter and a two quadrant current multiplier. Cascoded flipped voltage follower (CASFVF) is used as an input stage in class AB pseudo differential pair to perform V-I conversion. Current multipliers are used to linearise output from V-I converter and provide additional tuning ability to transconductor. A second - order Butterworth low pass filter (LPF) is designed with proposed transconductor and simulated using TSMC 0.35-mu m CMOS technology in H-spice in synopsis tool. LPF consumes very low power (0.2 mW) and provides a Wide tuning range (200 K.Hz - 3.1 MHz).

引用

页码：750 / 755

页数：6

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