Title :
A new current-mode universal filter using CCII and OTAs
Author :
Lin, Chih-Lung ; Weng, Ro-Min ; Lee, Maw-Huei ; Kuo, Te-Son
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
A new novel current-mode biquad filter using one multiple output second generation current conveyor (CCII), two operational transconductance amplifiers (OTAs), and two grounded capacitors is presented. The filter has three inputs and one output and can realise five different biquad transfer functions simultaneously without any changes in the circuit topology. This circuit enables the circuit characteristics to be electronically tuned. Grounded capacitors are suitable for integrated circuit implementation. An example is given, together with simulated results by PSPICE
Keywords :
biquadratic filters; circuit tuning; current conveyors; current-mode circuits; operational amplifiers; transfer functions; OTAs; active filters; biquad filter; biquad transfer functions; circuit characteristics; current-mode universal filter; electronic tuning; grounded capacitors; integrated circuit implementation; multiple output CCII; operational transconductance amplifiers; second generation current conveyor; Active filters; Band pass filters; Capacitors; Circuit simulation; Frequency; Operational amplifiers; SPICE; Transconductance; Transfer functions; Tuned circuits;
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
DOI :
10.1109/APCCAS.1998.743734
