Title :
Current-controlled Current-mode Biquadratic Filter with two inputs and three outputs Using Multiple-Output FTFNs
Author :
Hirunporm, Jirawat ; Pukkalanun, Tattaya ; Tangsrirat, Worapong
Author_Institution :
Fac. of Eng., King Mongkut´´s Inst. of Technol., Bangkok
Abstract :
A current-controlled current-mode biquadratic filter using a modified type of a four-terminal floating nullor (FTFN), which is called as an electronically tunable multiple-output FTFN (ET-FTFN), is proposed. The proposed filter with two-input and three-output terminals comprises only ET-FTFNs and four grounded passive elements. The filter can simultaneously realize the inverting-type lowpass, noninverting-type lowpass, inverting-type bandpass, noninverting-type bandpass, highpass, bandstop and allpass filter functions. The natural angular frequency and the quality factor are independently controlled by adjusting the external bias currents of the ET-FTFNs. All the active and passive sensitivities are low. PSPICE simulation results are employed to verify the circuit performance
Keywords :
Q-factor; all-pass filters; band-pass filters; band-stop filters; biquadratic filters; current-mode circuits; high-pass filters; low-pass filters; PSPICE simulation; allpass filter; angular frequency control; bandpass filter; bandstop filter; current-controlled current-mode biquadratic filter; electronically tunable multiple-output FTFN; four-terminal floating nullor; grounded passive elements; highpass filter; lowpass filter; quality factor control; Band pass filters; Circuit simulation; Current mode circuits; Frequency; Operational amplifiers; Passive filters; Q factor; SPICE; Transfer functions; Tunable circuits and devices; Four Terminal Floating Nullor (FTFN); biquadratic filter; current-mode circuit;
Conference_Titel :
SICE-ICASE, 2006. International Joint Conference
Conference_Location :
Busan
Print_ISBN :
89-950038-4-7
Electronic_ISBN :
89-950038-5-5
DOI :
10.1109/SICE.2006.315192
