Premium
Current‐mode biquadratic filter using DO‐CCCDBAs
Author(s) -
Siripruchyanun Montree,
Jaikla Winai
Publication year - 2010
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.556
Subject(s) - resistor , filter (signal processing) , computer science , capacitor , electronic engineering , current feedback operational amplifier , current conveyor , low pass filter , current (fluid) , band pass filter , amplifier , control theory (sociology) , topology (electrical circuits) , electrical engineering , operational amplifier , voltage , engineering , bandwidth (computing) , telecommunications , control (management) , artificial intelligence
This paper presents a current‐mode universal biquadratic filter performing three functions; low pass, high pass and band pass, based on dual‐output current‐controlled current differencing buffered amplifiers (DO‐CCCDBAs). The features of the circuit are that the quality factor and pole frequency can be tuned independently via the input bias currents; the circuit description is very simple, consisting of merely three DO‐CCCDBAs and two grounded capacitors. Without any external resistors that require component matching conditions and using only grounded elements, the proposed circuit is very appropriate to further develop into an integrated circuit. The PSPICE simulation results are depicted. The given results agree well with the theoretical anticipation. Copyright © 2008 John Wiley & Sons, Ltd.