Title :
Wide tunable all pass filter using OTA as active component
Author :
Das, Bhaba Priyo ; Watson, Neville ; Liu, Yonghe
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Canterbury, Christchurch, New Zealand
Abstract :
A new tunable all pass filter is presented. It is based on the simple op-amp based filter with a programmable floating capacitor and a programmable resistor. The proposed floating capacitor value can be widely varied by adjusting the transconductance parameter which depends on bias current. The floating capacitor consists of only five OTAs. Using simulation results a first order all pass filter with phase tuning capability is proposed.
Keywords :
all-pass filters; capacitors; operational amplifiers; resistors; OTA; active component; bias current; floating capacitor value; phase tuning capability; programmable floating capacitor; programmable resistor; simple op-amp based filter; transconductance parameter; wide tunable all pass filter; Capacitance; Capacitors; Integrated circuit modeling; Phase shifters; Resistors; Transconductance; Voltage control;
Conference_Titel :
Signals and Electronic Systems (ICSES), 2010 International Conference on
Conference_Location :
Gliwice
Print_ISBN :
978-1-4244-5307-8
Electronic_ISBN :
978-83-9047-4-2
