Publication detail

Current-Controlled CFTA-Based Current-Mode SITO Universal Filter and Quadrature Oscillator

HERENCSÁR, N. KOTON, J. VRBA, K. LAHIRI, A. CICEKOGLU, O.

Original Title

Current-Controlled CFTA-Based Current-Mode SITO Universal Filter and Quadrature Oscillator

Czech Title

Current-Controlled CFTA-Based Current-Mode SITO Universal Filter and Quadrature Oscillator

English Title

Current-Controlled CFTA-Based Current-Mode SITO Universal Filter and Quadrature Oscillator

Type

conference paper

Language

en

Original Abstract

In this paper, a new current-mode (CM) single-input-three-output (SITO) universal filter based on single current-controlled current follower transconductance amplifier (CCCFTA) as active element and two capacitors, is presented. The proposed filter enables to realize all standard filter functions. Moreover, by expanding the CM filter via CCCFTA-based negative resistor, the CM quadrature oscillator is proposed, which employs only grounded capacitors. Hence, it is attractive for IC implementation. In both structures instead of floating resistor the intrinsic impedance of f terminal is used. Thus, both circuits are resistorless with low sensitivity features. SPICE simulation results using MOSIS 0.5 um CMOS process parameters are given to confirm the theoretical analysis.

Czech abstract

In this paper, a new current-mode (CM) single-input-three-output (SITO) universal filter based on single current-controlled current follower transconductance amplifier (CCCFTA) as active element and two capacitors, is presented. The proposed filter enables to realize all standard filter functions. Moreover, by expanding the CM filter via CCCFTA-based negative resistor, the CM quadrature oscillator is proposed, which employs only grounded capacitors. Hence, it is attractive for IC implementation. In both structures instead of floating resistor the intrinsic impedance of f terminal is used. Thus, both circuits are resistorless with low sensitivity features. SPICE simulation results using MOSIS 0.5 um CMOS process parameters are given to confirm the theoretical analysis.

English abstract

In this paper, a new current-mode (CM) single-input-three-output (SITO) universal filter based on single current-controlled current follower transconductance amplifier (CCCFTA) as active element and two capacitors, is presented. The proposed filter enables to realize all standard filter functions. Moreover, by expanding the CM filter via CCCFTA-based negative resistor, the CM quadrature oscillator is proposed, which employs only grounded capacitors. Hence, it is attractive for IC implementation. In both structures instead of floating resistor the intrinsic impedance of f terminal is used. Thus, both circuits are resistorless with low sensitivity features. SPICE simulation results using MOSIS 0.5 um CMOS process parameters are given to confirm the theoretical analysis.

Keywords

universal filter, quadrature oscillator, current-controlled current follower transconductance amplifier (CCCFTA)

RIV year

2010

Released

08.09.2010

Publisher

University of West Bohemia

Location

Plzeň

ISBN

978-80-7043-865-7

Book

Proc. Int. Conf. Applied Electronics 2010

Pages from

121

Pages to

124

Pages count

4

BibTex


@inproceedings{BUT35514,
  author="Norbert {Herencsár} and Jaroslav {Koton} and Kamil {Vrba} and Abhirup {Lahiri} and Oguzhan {Cicekoglu}",
  title="Current-Controlled CFTA-Based Current-Mode SITO Universal Filter and Quadrature Oscillator",
  annote="In this paper, a new current-mode (CM) single-input-three-output (SITO) universal filter based on single current-controlled current follower transconductance amplifier (CCCFTA) as active element and two capacitors, is presented. The proposed filter enables to realize all standard filter functions. Moreover, by expanding the CM filter via CCCFTA-based negative resistor, the CM quadrature oscillator is proposed, which employs only grounded capacitors. Hence, it is attractive for IC implementation. In both structures instead of floating resistor the intrinsic impedance of f terminal is used. Thus, both circuits are resistorless with low sensitivity features. SPICE simulation results using MOSIS 0.5 um CMOS process parameters are given to confirm the theoretical analysis.",
  address="University of West Bohemia",
  booktitle="Proc. Int. Conf. Applied Electronics 2010",
  chapter="35514",
  howpublished="print",
  institution="University of West Bohemia",
  year="2010",
  month="september",
  pages="121--124",
  publisher="University of West Bohemia",
  type="conference paper"
}