Field programmable Gm-C array for wide frequency range bandpass filter applications

Author

Lebel, Eric ; Assi, Ali ; Sawan, Mohamad

Author_Institution

Ecole Polytechnique de Montreal, Que., Canada

fYear

2005

fDate

23-26 May 2005

Firstpage

1952

Abstract

A new programmable bandpass filter approach is presented. It is based on an array of fully differential transconductance circuits to control the filter parameters. The signal path does not contain any switch and fine-tuning of the filter parameters is implemented using programmable capacitors. The filter circuit is based on a biquadratic topology and designed with CMOS 0.18 μm technology. SpectreS simulation results show a power consumption less than 5.2 mW with a ± 0.9 V power supply. In addition, a wide frequency range (10-126 MHz) is achieved. The quality factor can also be tuned from 0.1 to 10.6.

Keywords

CMOS analogue integrated circuits; Q-factor; band-pass filters; biquadratic filters; capacitors; circuit simulation; circuit tuning; differential amplifiers; field programmable analogue arrays; 0.18 micron; 10 to 126 MHz; CMOS 0.18 mm technology; SpectreS simulation; biquadratic topology; differential transconductance circuits; field programmable Gm-C array; fine tuning; programmable capacitors; quality factor; wideband bandpass filter; Band pass filters; CMOS technology; Capacitors; Circuit simulation; Circuit topology; Energy consumption; Filter bank; Frequency; Switches; Transconductance;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on

Print_ISBN

0-7803-8834-8

Type

conf

DOI

10.1109/ISCAS.2005.1464996

Filename

1464996