Publication detail

A Voltage Gain-Controlled Modified CFOA And Its Application in Electronically Tunable Four-Mode All-Pass Filter Design

HERENCSÁR, N. KOTON, J. LAHIRI, A. METIN, B. VRBA, K.

Original Title

A Voltage Gain-Controlled Modified CFOA And Its Application in Electronically Tunable Four-Mode All-Pass Filter Design

English Title

A Voltage Gain-Controlled Modified CFOA And Its Application in Electronically Tunable Four-Mode All-Pass Filter Design

Type

journal article - other

Language

en

Original Abstract

This paper presents a new active building block (ABB) called voltage gain-controlled modified current feedback amplifier (VGC-MCFOA) based on bipolar junction transistor technology. The versatility of the new ABB is demonstrated in new first-order all-pass filter structure design employing single VGC-MCFOA, single grounded capacitor, and three resistors. Introduced circuit provides all four possible transfer functions at the same configuration, namely current-mode, transimpedance-mode, transadmittance-mode, and voltage-mode. The pole frequency of the circuit can be easily tuned by means of DC bias currents. The theoretical results are verified by SPICE simulations based on bipolar transistor arrays AT&T ALA400-CBIC-R process parameters.

English abstract

This paper presents a new active building block (ABB) called voltage gain-controlled modified current feedback amplifier (VGC-MCFOA) based on bipolar junction transistor technology. The versatility of the new ABB is demonstrated in new first-order all-pass filter structure design employing single VGC-MCFOA, single grounded capacitor, and three resistors. Introduced circuit provides all four possible transfer functions at the same configuration, namely current-mode, transimpedance-mode, transadmittance-mode, and voltage-mode. The pole frequency of the circuit can be easily tuned by means of DC bias currents. The theoretical results are verified by SPICE simulations based on bipolar transistor arrays AT&T ALA400-CBIC-R process parameters.

Keywords

Voltage gain-controlled modified CFOA, MCFOA, electronically tunable filter, four-mode circuit, all-pass filter

RIV year

2012

Released

31.10.2012

Publisher

International Science & Engineering Society, o.s.

ISBN

1805-5443

Periodical

International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems

Year of study

1

Number

1

State

CZ

Pages from

20

Pages to

25

Pages count

6

URL

Full text in the Digital Library

Documents

BibTex


@article{BUT94840,
  author="Norbert {Herencsár} and Jaroslav {Koton} and Abhirup {Lahiri} and Bilgin {Metin} and Kamil {Vrba}",
  title="A Voltage Gain-Controlled Modified CFOA And Its Application in Electronically Tunable Four-Mode All-Pass Filter Design",
  annote="This paper presents a new active building block (ABB) called voltage gain-controlled modified current feedback amplifier (VGC-MCFOA) based on bipolar junction transistor technology. The versatility of the new ABB is demonstrated in new first-order all-pass filter structure design employing single VGC-MCFOA, single grounded capacitor, and three resistors. Introduced circuit provides all four possible transfer functions at the same configuration, namely current-mode, transimpedance-mode, transadmittance-mode, and voltage-mode. The pole frequency of the circuit can be easily tuned by means of DC bias currents. The theoretical results are verified by SPICE simulations based on bipolar transistor arrays AT&T ALA400-CBIC-R process parameters.",
  address="International Science & Engineering Society, o.s.",
  chapter="94840",
  doi="10.11601/ijates.v1i1.27",
  institution="International Science & Engineering Society, o.s.",
  number="1",
  volume="1",
  year="2012",
  month="october",
  pages="20--25",
  publisher="International Science & Engineering Society, o.s.",
  type="journal article - other"
}