A new three-input and one-output current-mode universal filter using unity-gain cells

Author

Lin, Chih-Lung ; Weng, Ro-Min ; Peng, Sheng-Yu ; Lee, Maw-Huei ; Kuo, Te-Son

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

fYear

1998

fDate

24-27 Nov 1998

Firstpage

245

Lastpage

247

Abstract

A new current-mode universal filter using unity-gain current and voltage followers is presented. The filter has three inputs and one output. It offers the following advantageous features: realisation of highpass, bandpass, lowpass, notch, and allpass filter without any changes in the circuit topology, low active and passive sensitivities, no requirement for critical matching, and fewer active and passive elements. Moreover, the current mode circuit is suitable for integrated circuit implementation for using grounded capacitors. PSPICE simulated results that confirm the theoretical analysis are obtained

Keywords

all-pass filters; band-pass filters; biquadratic filters; current conveyors; current-mode circuits; high-pass filters; low-pass filters; notch filters; PSPICE simulation; active filter; allpass filter; bandpass filter; biquad filter; current mode circuit; highpass filter; integrated circuit implementation; lowpass filter; notch filter; one-output universal filter; three-input universal filter; unity-gain cells; Analytical models; Band pass filters; Capacitors; Circuit simulation; Circuit topology; Current mode circuits; Matched filters; Passive filters; SPICE; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1998. IEEE APCCAS 1998. The 1998 IEEE Asia-Pacific Conference on

Conference_Location

Chiangmai

Print_ISBN

0-7803-5146-0

Type

conf

DOI

10.1109/APCCAS.1998.743730

Filename

743730