Publication detail

Current-Controlled Current-Mode Universal Biquad Employing Multi-Output Transconductors

ŠOTNER, R. PETRŽELA, J. SLEZÁK, J.

Original Title

Current-Controlled Current-Mode Universal Biquad Employing Multi-Output Transconductors

Type

journal article in Web of Science

Language

English

Original Abstract

This paper deals with RC active biquad working in the current mode (CM).The design approach uses only three transconductors (OTA) with the minimum necessary number of outputs and with only three passive grounded elements. Proposed filter has simple circuit configuration providing all standard transfer functions such as high-pass (HP), band-pass (BP), low-pass (LP), band-reject (BR) and all-pass (AP). Electronic tuning and independent adjusting of the quality factor and bandwidth of the band-pass filter are possible. The presented circuits are verified by PSpice simulations utilizing OTAs on transistor level of abstraction. The effects of the real active elements in suggested circuit are briefly discussed. Experimental verification is also given. Designed networks can be used in many applications such as anti-aliasing filter, in high-speed data telecommunication systems, for signal processing in cable modems, in regulation and measurement techniques etc.

Keywords

Current-mode, transconductor, electronic adjusting, universal filter.

Authors

ŠOTNER, R.; PETRŽELA, J.; SLEZÁK, J.

RIV year

2009

Released

2. 9. 2009

ISBN

1210-2512

Periodical

Radioengineering

Year of study

18

Number

3

State

Czech Republic

Pages from

285

Pages to

294

Pages count

10

BibTex

@article{BUT49063,
  author="Roman {Šotner} and Jiří {Petržela} and Josef {Slezák}",
  title="Current-Controlled Current-Mode Universal Biquad Employing Multi-Output Transconductors",
  journal="Radioengineering",
  year="2009",
  volume="18",
  number="3",
  pages="285--294",
  issn="1210-2512"
}