Publication detail

Electronically tunable mixed mode universal filter employing grounded capacitors utilizing highly versatile VD-DVCC

FASEEHUDDIN, M. HERENCSÁR, N. ALBRNI, M. A. SHIREEN, S. SAMPE, J.

Original Title

Electronically tunable mixed mode universal filter employing grounded capacitors utilizing highly versatile VD-DVCC

Type

journal article in Web of Science

Language

English

Original Abstract

Purpose This paper aims to achieve two main objectives. First, to introduce to the literature a new versatile active building block, namely, voltage differencing differential voltage current conveyor (VD-DVCC) for analog signal processing applications. Second, to design a novel electronically tunable mixed-mode universal filter. The designed filter provides low-pass, high-pass, band-pass, band-reject and all-pass responses in voltage-mode (VM), current-mode (CM), trans-impedance-mode (TIM) and trans-admittance-mode (TAM). Design/methodology/approach The proposed filter uses two VD-DVCCs, three resistors and two capacitors. All the capacitors used are grounded, which is advantageous from the monolithic integration point of view. The VD-DVCC is designed and validated in Cadence software using CMOS 0.18 mu m process design kit from Silterra Malaysia at a supply voltage of +/- 1 V. Findings The proposed novel filter enjoys many attractive features including as follows: the ability to operate in all four modes, no requirement of capacitive matching, tunability of quality factor (Q) independent of pole frequency, availability of both inverting and non-inverting outputs for VM and TIM mode, high output impedance explicit current output for CM and TAM, no requirement for double/negative input signals (voltage/current) for response realization and low active and passive sensitivities. The filter is designed for a pole frequency of 5.305 MHz. The obtained results bear a close resemblance with the theoretical findings. Originality/value The proposed novel filter structure requires a minimum number of active and passive components and provides operation in all four operating modes. The filter will find application in structures of mixed-mode systems.

Keywords

Communication; Current-mode; Mixed-mode; Current conveyor; Filter; VD-DVCC

Authors

FASEEHUDDIN, M.; HERENCSÁR, N.; ALBRNI, M. A.; SHIREEN, S.; SAMPE, J.

Released

16. 7. 2021

Publisher

EMERALD GROUP PUBLISHING LTD

Location

BINGLEY

ISBN

1758-602X

Periodical

CIRCUIT WORLD

Year of study

48

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

18

Pages count

18

URL

https://www.emerald.com/insight/content/doi/10.1108/CW-05-2020-0080/full/html

BibTex

@article{BUT172619,
  author="Mohammad {Faseehuddin} and Norbert {Herencsár} and Musa Ibharim Ali {Albrni} and Sadia {Shireen} and Jahariah {Sampe}",
  title="Electronically tunable mixed mode universal filter employing grounded capacitors utilizing highly versatile VD-DVCC",
  journal="CIRCUIT WORLD",
  year="2021",
  volume="48",
  number="0",
  pages="1--18",
  doi="10.1108/CW-05-2020-0080",
  issn="1758-602X",
  url="https://www.emerald.com/insight/content/doi/10.1108/CW-05-2020-0080/full/html"
}