Abstract
PurposeTo develop an OTA‐C‐based universal filter realizing all standard transfer functions viz low pass, high pass, band pass, notch and all pass without an inverting amplifier and with minimum component matching condition.Design/methodology/approachBy developing different sets of current and voltage relationship involving simple independent transconductance in biquadratic functions using three operational transconductance amplifiers the aim has been achieved.FindingsThe circuit produces all pass transfer function as stated above without inverting amplifier as has been used in most of the earlier circuits. All realizations except all pass filter requires no matching condition. The circuit remains stable for non‐ideal OTAs.Originality/valueThe proposed circuit finds wide utility in industrial and research applications as a signal processing element.
Subject
Electrical and Electronic Engineering,Surfaces, Coatings and Films,Condensed Matter Physics,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials
Cited by
12 articles.
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