Title :
Current-mode Universal Filter with Four Inputs and One Output using CDTAs
Author :
Dumawipata, Teerasilapa ; Tangsrirat, Worapong ; Surakampontorn, Wanlop
Author_Institution :
Fac. of Eng. & Res. Center for Commun. & Inf. Technol., King Mongkut´´s Inst. of Technol., Bangkok
Abstract :
A current-controlled multiple-input single-output current-mode universal filter employing current differencing transconductance amplifiers (CDTAs) as active elements is described. The proposed circuit offers the following attractive features: employment the minimum number of active and passive components; simultaneous realization of all the standard filtering functions; independent current-control of the parameters omega0 and omega0/Q; no requirement of component matching conditions; employment of only two grounded passive capacitors which is suitable for integrated circuit (IC) implementation; and low passive and active sensitivities
Keywords :
active filters; current-mode circuits; operational amplifiers; current differencing transconductance amplifiers; current-controlled multiple-input single-output universal filter; current-mode universal filter; integrated circuit implementation; low active sensitivity; low passive sensitivity; standard filtering functions; Active filters; Capacitors; Circuits; Employment; Equations; Information filtering; Information filters; Passive filters; Transconductance; Voltage;
Conference_Titel :
Circuits and Systems, 2006. APCCAS 2006. IEEE Asia Pacific Conference on
Conference_Location :
Singapore
Print_ISBN :
1-4244-0387-1
DOI :
10.1109/APCCAS.2006.342185
