Wideband reconfigurable CMOS Gm-C filter For wireless applications

Author

Gao Zhiqiang ; Wang Jinxiang ; Lai Fengchang ; Yu Mingyan ; Zhang Zhongzhao

Author_Institution

Microelectron. Center of Harbin Inst. of Technol., Harbin, China

fYear

2009

fDate

13-16 Dec. 2009

Firstpage

179

Lastpage

182

Abstract

In this paper, a reconfigurable, highly linear, active-Gm-C filter exhibiting a wide bandwidth is presented. The filter uses a new high-frequency, linear operational transconductance amplifier. The operational amplifiers used are based on two new crosscoupled pairs with flipped voltage followers(FVF) that allows optimized high linear, high frequency filter performance. A 3^rd filter prototype has been fabricated in 0.18um CMOS process. Simulated results show the filter is tunable in frequency from about 150KHz to 23MHz, and it exhibits < -44dB total harmonic distortion at 150KHz ~ 23MHz while the DC maximum power consumes 18mW.

Keywords

CMOS analogue integrated circuits; filters; operational amplifiers; CMOS process; cross-coupled pairs; flipped voltage followers; high-frequency linear operational transconductance amplifier; power 18 mW; reconfigurable highly linear active-Gm-C filter; size 0.18 mum; wideband reconfigurable CMOS Gm-C filter; wireless applications; Bandwidth; Broadband amplifiers; Frequency; Nonlinear filters; Operational amplifiers; Power harmonic filters; Prototypes; Transconductance; Voltage; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits, and Systems, 2009. ICECS 2009. 16th IEEE International Conference on

Conference_Location

Yasmine Hammamet

Print_ISBN

978-1-4244-5090-9

Electronic_ISBN

978-1-4244-5091-6

Type

conf

DOI

10.1109/ICECS.2009.5410969

Filename

5410969