Publication detail

Tunable universal filter with current follower and transconductance amplifiers and study of parasitic influences

JEŘÁBEK, J. ŠOTNER, R. VRBA, K.

Original Title

Tunable universal filter with current follower and transconductance amplifiers and study of parasitic influences

English Title

Tunable universal filter with current follower and transconductance amplifiers and study of parasitic influences

Type

journal article in Web of Science

Language

en

Original Abstract

A universal filter with dual-output current follower (DO-CF), two transconductance amplifiers (OTAs) and two passive elements is presented in this paper. The filter is tunable, of the single-input multiple-output (SIMO) type, and operates in the current mode. Our solution utilizes a low-impedance input node and high-impedance outputs. All types of the active elements used can be realized using our UCC-N1B 0520 integrated circuit and therefore the paper contains not only simulation results that were obtained with the help of behavioral model of the UCC-N1B 0520 element, but also the characteristics that were gained by measurement with the mentioned circuit. The presented simulation and measurement results confirm the quality of designed filter. Similar multi-loop structures are very-well known, but there are some drawbacks that are not discussed in similar papers. This paper contains detailed study of parasitic influences on the filter performance, impact of realistic input and output impedances is evaluated.

English abstract

A universal filter with dual-output current follower (DO-CF), two transconductance amplifiers (OTAs) and two passive elements is presented in this paper. The filter is tunable, of the single-input multiple-output (SIMO) type, and operates in the current mode. Our solution utilizes a low-impedance input node and high-impedance outputs. All types of the active elements used can be realized using our UCC-N1B 0520 integrated circuit and therefore the paper contains not only simulation results that were obtained with the help of behavioral model of the UCC-N1B 0520 element, but also the characteristics that were gained by measurement with the mentioned circuit. The presented simulation and measurement results confirm the quality of designed filter. Similar multi-loop structures are very-well known, but there are some drawbacks that are not discussed in similar papers. This paper contains detailed study of parasitic influences on the filter performance, impact of realistic input and output impedances is evaluated.

Keywords

BOTA, DO-CF, current mode, SIMO filter, tunable filter, universal filter.

RIV year

2011

Released

09.12.2011

Location

Bratislava

ISBN

1335-3632

Periodical

Journal of Electrical Engineering

Year of study

62

Number

6

State

SK

Pages from

317

Pages to

326

Pages count

10

Documents

BibTex


@article{BUT75076,
  author="Jan {Jeřábek} and Roman {Šotner} and Kamil {Vrba}",
  title="Tunable universal filter with current follower and transconductance amplifiers and study of parasitic influences",
  annote="A universal filter with dual-output current follower (DO-CF), two transconductance amplifiers (OTAs) and two passive elements is presented in this paper. The filter is tunable, of the single-input multiple-output (SIMO) type, and operates in the current mode. Our solution utilizes a low-impedance input node and high-impedance outputs. All types of the active elements used can be realized using our UCC-N1B 0520 integrated circuit and therefore the paper contains not only simulation results that were obtained with the help of behavioral model of the UCC-N1B 0520 element, but also the characteristics that were gained by measurement with the mentioned circuit. The presented simulation and measurement results confirm the quality of designed filter. Similar multi-loop structures are very-well known, but there are some drawbacks that are not discussed in similar papers. This paper contains detailed study of parasitic influences on the filter performance, impact of realistic input and output impedances is evaluated.",
  chapter="75076",
  number="6",
  volume="62",
  year="2011",
  month="december",
  pages="317--326",
  type="journal article in Web of Science"
}