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

Pages from

1

Pages to

6

Pages count

6

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"
}