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Cascadable current-mode first-order allpass filter using current controlled conveyors
Author(s)
Date Issued
October 1, 2013
Type
Article
Abstract
This paper presents a canonical current-mode first-order allpass filter using two current controlled conveyors (CCCIIs) and a single grounded capacitor. The proposed circuit simultaneously realizes both inverting and non-inverting types of first-order allpass functions without needing component matching constraints. Its pole frequency (ω0) can be adjusted electronically by means of a bias current of the CCCII. The presented circuit also possesses both low-input and high-output impedances, which are suitable for current-mode cascading. Simulation results including frequency response and transient analysis are incorporated to confirm the theoretical analysis.
Citation
Przeglad Elektrotechniczny, 89(1A), 187-190, 2013