NISCAIR Online Periodicals Repository

Research Journals >
Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.49 [2011] >
IJPAP Vol.49(12) [December 2011] >

Title: Realization of current-mode KHN-equivalent biquad filter using ZC-CFTAs and grounded capacitors
Authors: Satansup, Jetsdaporn
Tangsrirat, Worapong
Keywords: Z-copy current follower transconductance amplifier
Biquad filter
Current-mode circuit
Issue Date: Dec-2011
Publisher: NISCAIR-CSIR, India
Abstract: In this paper, a current-mode Kerwin-Huelsman-Newcomb (KHN) filter structure employing four z-copy current follower transconductance amplifiers (ZC-CFTAs) and two grounded capacitors is proposed. The circuit structure has one low-impedance current input and three high-impedance current outputs and enables realizing lowpass, bandpass and highpass current responses simultaneously. The bandstop and allpass responses can also be obtained by connecting appropriate output currents directly without additional devices. The proposed filter is capable of providing an independent current-control of the natural angular frequency () and quality factor (Q) through the transconductance of the ZC-CFTA. Moreover, high-Q value filter can be realized by simply tuning the ratio of ZC-CFTA’s transconductance. To support the theoretical results, the properties of the presented filter using CMOS ZC-CFTA have been verified by simulation results.
Page(s): 841-846
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.49(12) [December 2011]

Files in This Item:

File Description SizeFormat
IJPAP 49(12) 841-846.pdf253.84 kBAdobe PDFView/Open
 Current Page Visits: 1405 
Recommend this item


Online Submission of Articles |  NISCAIR Website |  National Knowledge Resources Consortium |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2015 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 165586 since 01-Sep-2015  Last updated on 27-Jun-2016Webmaster: