Title :
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
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;
Conference_Titel :
Electron Devices and Solid-State Circuits, 2005 IEEE Conference on
Print_ISBN :
0-7803-9339-2
DOI :
10.1109/EDSSC.2005.1635323
