Publication result detail

Differential-input Buffered and Transconductance Amplifier (DBTA): A Novel Building Block for Analog Signal Processing

HERENCSÁR, N.; KOTON, J.; VRBA, K.

Original Title

Differential-input Buffered and Transconductance Amplifier (DBTA): A Novel Building Block for Analog Signal Processing

English Title

Differential-input Buffered and Transconductance Amplifier (DBTA): A Novel Building Block for Analog Signal Processing

Type

Paper in proceedings (conference paper)

Original Abstract

In this paper, a novel building block for analog signal processing the differential-input buffered and transcon-ductance amplifier (DBTA) is presented. The proposed four-input and two-output (FITO)-type voltage-mode universal filter using single DBTA can realize all filter functions (i.e., low-, band-, high-pass, band-stop, and all-pass) without changing the circuit topology and en-ables independent control of the quality factor Q using single passive element. No component matching is re-quired and all the passive and active sensitivities are low. PSPICE simulations using a BJT realization of DBTA and experimental results based on commercially available amplifiers OPA860 and MAX436 are included to verify the theoretical conclusions of the proposed circuit.

English abstract

In this paper, a novel building block for analog signal processing the differential-input buffered and transcon-ductance amplifier (DBTA) is presented. The proposed four-input and two-output (FITO)-type voltage-mode universal filter using single DBTA can realize all filter functions (i.e., low-, band-, high-pass, band-stop, and all-pass) without changing the circuit topology and en-ables independent control of the quality factor Q using single passive element. No component matching is re-quired and all the passive and active sensitivities are low. PSPICE simulations using a BJT realization of DBTA and experimental results based on commercially available amplifiers OPA860 and MAX436 are included to verify the theoretical conclusions of the proposed circuit.

Keywords

active filters, analog signal processing, DBTA, universal biquadratic filter, voltage-mode

Key words in English

active filters, analog signal processing, DBTA, universal biquadratic filter, voltage-mode

Authors

HERENCSÁR, N.; KOTON, J.; VRBA, K.

RIV year

2010

Released

01.03.2009

Publisher

RISP

Location

Japonsko

ISBN

978-4-9902856-1-6

Book

Proceedings of the 2009 RISP International Workshop on Nonlinear Circuits and Signal Processing

Pages from

542

Pages to

545

Pages count

4

BibTex

@inproceedings{BUT33150,
  author="Norbert {Herencsár} and Jaroslav {Koton} and Kamil {Vrba}",
  title="Differential-input Buffered and Transconductance Amplifier (DBTA): A Novel Building Block for Analog Signal Processing",
  booktitle="Proceedings of the 2009 RISP International Workshop on Nonlinear Circuits and Signal Processing",
  year="2009",
  pages="542--545",
  publisher="RISP",
  address="Japonsko",
  isbn="978-4-9902856-1-6"
}