Publication detail
Digitally Adjustable Current Amplifier and its Application in Fully Differential Current-Mode Band-Pass Filter Design
KOTON, J. HERENCSÁR, N. VRBA, K. JEŘÁBEK, J.
Original Title
Digitally Adjustable Current Amplifier and its Application in Fully Differential Current-Mode Band-Pass Filter Design
English Title
Digitally Adjustable Current Amplifier and its Application in Fully Differential Current-Mode Band-Pass Filter Design
Type
journal article - other
Language
en
Original Abstract
In this paper the application possibilities of the recently presented digitally adjustable current amplifier (DACA) are further analyzed. In cooperation with conventional unity-gain current followers two circuit solutions of current-mode band-pass filters are presented. Both structures enable to change the quality factor Q independently of the natural frequency w0 by means of the current gain of DACA, where the value of Q is directly or indirectly proportional to the current gain. Non-idealities of the active elements are discussed and the simulation results of the proposed filters agreeing with the theory are also given.
English abstract
In this paper the application possibilities of the recently presented digitally adjustable current amplifier (DACA) are further analyzed. In cooperation with conventional unity-gain current followers two circuit solutions of current-mode band-pass filters are presented. Both structures enable to change the quality factor Q independently of the natural frequency w0 by means of the current gain of DACA, where the value of Q is directly or indirectly proportional to the current gain. Non-idealities of the active elements are discussed and the simulation results of the proposed filters agreeing with the theory are also given.
Keywords
analog signal processing, frequency filter, digitally adjustable current amplifier
RIV year
2010
Released
16.11.2010
ISBN
1213-1539
Periodical
Elektrorevue - Internetový časopis (http://www.elektrorevue.cz)
Year of study
2010
Number
90
State
CZ
Pages from
1
Pages to
6
Pages count
6
Documents
BibTex
@article{BUT50633,
author="Jaroslav {Koton} and Norbert {Herencsár} and Kamil {Vrba} and Jan {Jeřábek}",
title="Digitally Adjustable Current Amplifier and its Application in Fully Differential Current-Mode Band-Pass Filter Design",
annote="In this paper the application possibilities of the recently presented digitally adjustable current amplifier (DACA) are further analyzed. In cooperation with conventional unity-gain current followers two circuit solutions of current-mode band-pass filters are presented. Both structures enable to change the quality factor Q independently of the natural frequency w0 by means of the current gain of DACA, where the value of Q is directly or indirectly proportional to the current gain. Non-idealities of the active elements are discussed and the simulation results of the proposed filters agreeing with the theory are also given.",
chapter="50633",
journal="Elektrorevue - Internetový časopis (http://www.elektrorevue.cz)",
number="90",
volume="2010",
year="2010",
month="november",
pages="1--6",
type="journal article - other"
}