Title :
Current-tunable current-mode multifunction filter employing a modified CCCCTA
Author :
Kumngern, Montree ; Torteanchai, Usa ; Sarsitthithum, Kanok
Author_Institution :
Dept. of Telecommun. Eng., King Mongkut´´s Inst. of Technol. Ladkrabang, Bangkok, Thailand
Abstract :
This paper presents a current-tunable current-mode universal biquadratic filter with two inputs and two outputs using one modified current-controlled current differencing transconductance amplifier, two grounded capacitors and one grounded resistor. The proposed circuit provides following advantages: realization of low-pass, band-pass, high-pass, band-stop and all-pass current responses; orthogonal control of the natural frequency and the quality factor; employment of grounded passive components which is suitable for integrated circuit implementation and low active and passive sensitivities. Simulation results are given to confirm the presented theory.
Keywords :
Q-factor; amplifiers; biquadratic filters; capacitors; current-mode circuits; resistors; all-pass current response; band-pass current response; band-stop current response; current-controlled current differencing transconductance amplifier; current-tunable current-mode multifunction filter; grounded capacitor; grounded passive component; grounded resistor; high-pass current response; low-pass current response; modified CCCCTA; natural frequency; orthogonal control; quality factor; universal biquadratic filter; Band pass filters; Capacitors; Filtering theory; Integrated circuits; Sensitivity; Transconductance; biquad filter; current-mode circuit; modified current-controlled current conveyor transconductance amplifier;
Conference_Titel :
Industrial Electronics and Applications (ICIEA), 2012 7th IEEE Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4577-2118-2
DOI :
10.1109/ICIEA.2012.6361018
