Differential current-mode tunable wave active filters based on single-ended wave port terminators

Author

Souliotis, George ; Fragoulis, Nikos

Author_Institution

Dept. of Phys., Univ. of Patras, Rio Patras, Greece

Volume

53

Issue

4

fYear

2006

fDate

4/1/2006 12:00:00 AM

Firstpage

821

Lastpage

828

Abstract

A method for the design of differential current-mode wave active filters, which is based on the use of single-ended wave port terminators, is presented in this paper. The resulting filters are modular and very simple to design while their cutoff frequency is controlled by a dc current, giving them the ability of frequency tuning. As an example a wide-band bandpass filter is realized by cascading a low-pass and a highpass filter. The overall filter has been integrated using a standard 0.35-μm CMOS technology.

Keywords

CMOS integrated circuits; active filters; band-pass filters; circuit tuning; current-mode circuits; high-pass filters; low-pass filters; 0.35 micron; CMOS technology; differential current-mode filters; frequency tuning; high-pass filter; low-pass filter; single-ended wave port terminator; tunable wave active filters; wide-band bandpass filter; Active filters; Band pass filters; CMOS technology; Circuits; Cutoff frequency; Design methodology; Operational amplifiers; Passive filters; Virtual prototyping; Wideband; Analog filters; current-mode filters; monolithic filters; wave active filters;

fLanguage

English

Journal_Title

Circuits and Systems I: Regular Papers, IEEE Transactions on

Publisher

ieee

ISSN

1549-8328

Type

jour

DOI

10.1109/TCSI.2005.862069

Filename

1618869