Current-mode multifunction filter using opamp compensation poles

Author

Minaei, Shahram ; Cicekoglu, Oguzhan

Author_Institution

Dept. of Electron. & Commun. Eng., Dogus Univ., Istanbul, Turkey

Volume

1

fYear

2002

fDate

2002

Firstpage

173

Abstract

In this paper a new current-mode multifunction filter using opamp compensation poles is presented. The proposed circuit is composed of two internally compensated operational amplifiers (OAs) and five single output operational transconductance amplifiers (OTAs), without using external passive elements. The proposed multifunction filter can realize lowpass, bandpass, highpass and bandstop responses simultaneously all at high output impedances. The circuit is suitable for monolithic implementation either with CMOS or bipolar technologies. All of active sensitivities are low. The performances of the circuits are tested using SPICE simulation program.

Keywords

analogue integrated circuits; band-pass filters; band-stop filters; compensation; continuous time filters; current-mode circuits; high-pass filters; linear network analysis; low-pass filters; monolithic integrated circuits; operational amplifiers; poles and zeros; transfer functions; CMOS technologies; bandpass responses; bandstop responses; bipolar technologies; continuous time active filters; current-mode multifunction filter; high output impedances; highpass responses; internally compensated operational amplifiers; lowpass responses; monolithic implementation; opamp compensation poles; operational transconductance amplifiers; single output OTAs; Active filters; Band pass filters; CMOS technology; Circuit simulation; Circuit testing; Impedance; Operational amplifiers; SPICE; Transconductance; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2002. 9th International Conference on

Print_ISBN

0-7803-7596-3

Type

conf

DOI

10.1109/ICECS.2002.1045361

Filename

1045361