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Title: Electronically tunable current-mode bandpass filter
Authors: Shah, N A
Iqbal, S Z
Parveen, B
Keywords: Current-mode filter;electronic tunability;grounded capacitors
Issue Date: Jan-2005
Publisher: CSIR
IPC Code: H03K 3/00
Abstract: A new current-mode (CM) operational transconductance amplifier-capacitor (OTA-C) structure implementing second-order bandpass (BP) filtering response and offering a variety of performances is presented. The use of one type of sources and grounded capacitors (GC) considerably simplifies the implementation of the filter in contemporary IC form. The electronic tuning of circuit characteristics has been achieved orthogonally by adjusting the transconductance gain (gm) of OTAs. The circuit possesses low sensitivity figures having values less than or equal to unity lending it better performance feature.
Page(s): 60-62
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.43(01) [January 2005]

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