Design of CMOS Bandwidth Tunable Low-Pass Filter

被引：0

作者：

Guo, Hao ^{[1
]}

Zhang, Youming ^{[1
,2
]}

Tang, Xusheng ^{[1
,2
]}

Li, Junjie ^{[1
]}

Huang, Fengyi ^{[1
]}

Jiang, Nan ^{[3
]}

机构：

[1] Southeast Univ, Nanjing 210096, Peoples R China

[2] Purple Mt Labs, Nanjing 211111, Peoples R China

[3] S TEK Reserch Ctr, Shanghai 201203, Peoples R China

来源：

2020 THE 5TH IEEE INTERNATIONAL CONFERENCE ON INTEGRATED CIRCUITS AND MICROSYSTEMS (ICICM 2020) | 2020年

基金：

上海市自然科学基金;

关键词：

low-pass filter; bandwidth adjustable; sallen-Key;

D O I：

10.1109/icicm50929.2020.9292272

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a fully integrated bandwidth tunable low-pass filter based on 0.13 mu m CMOS technology is proposed. Active-RC structure is selected as the basic filtering unit. In order to achieve better suppression characteristics, 3-stage Sallen-Key second-order low-pass filter units are adopted as cascading. The filter tunable by 15 steps from 4 to 60 MHz in steps of 4 MHz. The double cutoff frequency suppression is greater than 30dB and the IIP3 is 14.2dBm. The power supply voltage used for this chip is 1.2V with occupying 0.2 mm(2) area.

引用

页码：302 / 305

页数：4

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