<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>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 prove 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 also contains detailed study of parasitic influences on the filter performance.</p></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 prove 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 also contains detailed study of parasitic influences on the filter performance.

Tunable Universal Filter with Current Follower and Transconductance Amplifiers and Study of Parasitic Influences

Department of Telecommunications, Faculty of Electrical Engineering and Communication, University of Technology, Purkynova 118, 612 00 Brno, Czech Republic

Department of Radio Electronics, Faculty of Electrical Engineering and Communication, University of Technology, Purkynova 118, 612 00 Brno, Czech Republic

Journal of Electrical Engineering

A universal filter with dual-output current follower (DO-CF), two transconductance amplifiers (OTAs) and two passive elements is presented in this paper. The...

Tunable Universal Filter with Current Follower and Transconductance Amplifiers and Study of Parasitic Influences

Published Online: Dec 21, 2011

Page range: 317 - 326

DOI: https://doi.org/10.2478/v10187-011-0051-x

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

This content is open access.

Tunable Universal Filter with Current Follower and Transconductance Amplifiers and Study of Parasitic Influences

Published Online: Dec 21, 2011

Page range: 317 - 326

DOI: https://doi.org/10.2478/v10187-011-0051-x

KeywordsBOTA, DO-CF, current mode, SIMO filter, tunable filter, universal filter

This content is open access.

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