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Title: High output impedance current-mode universal filter
Authors: Shah, N A
Rather, M F
Iqbal, S Z
Keywords: Current-mode universal filter;Second generation current conveyors;Current follower
Issue Date: Jul-2005
Publisher: CSIR
IPC Code: H03K 3/00
Abstract: A new current-mode universal filter with single input and three outputs employing two second-generation current conveyors (CCIIs), one current follower (CF) and four grounded/virtually grounded passive elements is presented. The proposed circuit enjoys the following features: simultaneous realization of lowpass(LP), bandpass(BP), and highpass(HP) filtering responses, no need of matching conditions, employment of grounded resistors which are ideal for IC implementation, employment of grounded/virtually grounded capacitors, orthogonal control of ω0 and ω0 / Q, high output impedance suiting cascadibility for higher order filters, and low passive sensitivity. PSPICE simulation results are included, confirming the workability of the proposed circuit.
Page(s): 556-558
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.43(07) [July 2005]

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