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Voltage-mode electronically tunable universal filter employing single CFTA
Author(s)
Date Issued
July 30, 2010
Type
Conference Paper
Abstract
An electronically tunable universal filter configuration which employs a single new active device namely current follower transconductance amplifier (CFTA) and four passive components is described. The presented circuit can be configured to realize all the five standard biquadratic filter functions; lowpass, bandpass, highpass, bandstop and allpass, without changing the circuit configuration. The filter also provides the advantage features of the use of only one active component and minimum number of passive components, and independent electronic tuning of the natural angular frequency(ω o) and bandwidth (BW), as well as low active and passive sensitivities.
Citation
Ecti Con 2010 the 2010 Ecti International Conference on Electrical Engineering Electronics Computer Telecommunications and Information Technology, 759-763, 2010