Current Differencing Buffered Amplifier Based Multiple-output Biquadratic Filters

Author

Pisitchalermpong, S. ; Pukkalanun, T. ; Tangsrirat, W. ; Surakampontorn, Wanlop

Author_Institution

Faculty of Engineering and the Research Center for Communication and Information Technology (ReCCIT), King Mongkut´´s Institute of Technology Ladkrabang (KMITL), Ladkrabang, Bangkok 10520, THAILAND. E-mail: S.pisitchalermpong@hotmail.com

fYear

2005

fDate

19-21 Dec. 2005

Firstpage

521

Lastpage

524

Abstract

In this paper, multiple-output multifunctional biquadratic filters using current differencing buffered amplifiers (CDBAs) as active elements are presented. The proposed circuit topologies are mainly composed of the CDBA-based cross-coupled feedback configuration and the voltage substractor. By an appropriate choice of virtually grounded passive components, the configurations can simultaneously realize lowpass, highpass, bandpass, bandstop and allpass voltage transfer functions, all at low resistance outputs. The natural angular frequency and the quality factor can orthogonal controllable. PSPICE simulation results demonstrating the feasibility of the technique are also included.

Keywords

Active filters; Band pass filters; Circuit simulation; Circuit topology; Differential amplifiers; Frequency; Q factor; SPICE; Transfer functions; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electron Devices and Solid-State Circuits, 2005 IEEE Conference on

Print_ISBN

0-7803-9339-2

Type

conf

DOI

10.1109/EDSSC.2005.1635323

Filename

1635323