Title :
Generation of current conveyor-based all-pass filters from op amp-based circuits
Author :
Soliman, Ahmed M.
Author_Institution :
Dept. of Electron. & Commun. Eng., Cairo Univ., Giza, Egypt
fDate :
4/1/1997 12:00:00 AM
Abstract :
It is shown that two of the recently reported voltage mode and current mode current conveyor-based all-pass circuits can be generated from the well known single input op amp all-pass configuration. It is also found that two other voltage mode current conveyor-based all-pass circuits are related directly to the differential input op amp all-pass structure. Several new grounded capacitor all-pass circuits are introduced. A new universal biquad circuit which realizes complex poles and employs a single current conveyor is also given. PSpice simulation results are included
Keywords :
SPICE; all-pass filters; biquadratic filters; circuit analysis computing; current conveyors; operational amplifiers; poles and zeros; CC II configuration; PSpice simulation; complex poles; current conveyor-based all-pass filters; current mode current conveyor-based all-pass circuits; differential input op amp all-pass structure; grounded capacitor all-pass circuits; op amp-based circuits; single input op amp all-pass configuration; universal biquad circuit; voltage mode current conveyor-based all-pass circuits; Bandwidth; Capacitors; Circuit simulation; Current mode circuits; Filters; Frequency; Operational amplifiers; Signal generators; Transfer functions; Voltage;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on