Publication detail

High Input Impedance Voltage-Mode Biquad Filter Using VD-DIBAs

JAIKLA, W. BIOLEK, D. SIRIPONGDEE, S. BAJER, J.

Original Title

High Input Impedance Voltage-Mode Biquad Filter Using VD-DIBAs

Type

journal article in Web of Science

Language

English

Original Abstract

This paper deals with a single-input multiple-output biquadratic filter providing three functions (low-pass, high-pass and band-pass) based on voltage differencing differential input buffered amplifier (VD-DIBA). The quality factor and pole frequency can be electronically tuned via the bias current. The proposed circuit uses two VD-DIBAs and two grounded capacitors without any external resistors, which is suitable to further develop into an integrated circuit. Moreover, the circuit possesses high input impedance, providing easy voltage-mode cascading. It is shown that the filter structure can be easily extended to multi-input filter without any additional components, providing also all-pass and band-reject properties. The PSPICE simulation results are included, verifying the key characteristics of the proposed filter. The given results agree well with the theoretical presumptions.

Keywords

Analog filter, VD-DIBA, voltage-mode, single input-multiple output.

Authors

JAIKLA, W.; BIOLEK, D.; SIRIPONGDEE, S.; BAJER, J.

RIV year

2014

Released

9. 9. 2014

Publisher

Společnost pro radioelektronické inženýrství

Location

Brno

ISBN

1210-2512

Periodical

Radioengineering

Year of study

23

Number

3

State

Czech Republic

Pages from

914

Pages to

921

Pages count

8

BibTex

@article{BUT109266,
  author="Winai {Jaikla} and Dalibor {Biolek} and Surapong {Siripongdee} and Josef {Bajer}",
  title="High Input Impedance Voltage-Mode Biquad Filter Using VD-DIBAs",
  journal="Radioengineering",
  year="2014",
  volume="23",
  number="3",
  pages="914--921",
  issn="1210-2512"
}