Publication result 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

Peer-reviewed article not indexed in WoS or Scopus

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

Key words in English

analog signal processing, frequency filter, digitally adjustable current amplifier

Authors

KOTON, J.; HERENCSÁR, N.; VRBA, K.; JEŘÁBEK, J.

RIV year

2011

Released

16.11.2010

ISBN

1213-1539

Periodical

Elektrorevue - Internetový časopis (http://www.elektrorevue.cz)

Volume

2010

Number

90

State

Czech Republic

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",
  journal="Elektrorevue - Internetový časopis (http://www.elektrorevue.cz)",
  year="2010",
  volume="2010",
  number="90",
  pages="1--6",
  issn="1213-1539"
}