Publication detail

Voltage Differencing Buffered/Inverted Amplifiers and Their Applications for Signal Generation

ŠOTNER, R. JEŘÁBEK, J. HERENCSÁR, N.

Original Title

Voltage Differencing Buffered/Inverted Amplifiers and Their Applications for Signal Generation

English Title

Voltage Differencing Buffered/Inverted Amplifiers and Their Applications for Signal Generation

Type

journal article in Web of Science

Language

en

Original Abstract

This paper presents some interesting new applications in the field of analog signal processing focused on signal generation. A novel modifications of recently developed and studied family of active elements, called voltage differencing buffered amplifier (VDBA) and voltage differencing inverted buffered amplifier (VDIBA) are discussed. Our attention is focused on simple application of active elements like dual output VDBAs (DO-VDBAs) and fully balanced VDBAs (FB-VDBAs), where one or two z terminals and always voltage outputs of both polarities are present. The last modification of VDBA allows additional electronic control of voltage gain in frame of active element except standard transconductance control. Discussed active elements were used to build very simple multiphase oscillators with minimal complexity as a simple non-tunable alternative to classical conceptions utilizing lossy integrators in phase-shifted loop. Linearly tunable quadrature differential mode (balanced) oscillator or balanced simple triangle and square wave generator were chosen as other useful examples. Features of proposed circuits are discussed and selected examples verified and evaluated by computer simulations with appropriate low-voltage TSMC 0.18 um CMOS technology models.

English abstract

This paper presents some interesting new applications in the field of analog signal processing focused on signal generation. A novel modifications of recently developed and studied family of active elements, called voltage differencing buffered amplifier (VDBA) and voltage differencing inverted buffered amplifier (VDIBA) are discussed. Our attention is focused on simple application of active elements like dual output VDBAs (DO-VDBAs) and fully balanced VDBAs (FB-VDBAs), where one or two z terminals and always voltage outputs of both polarities are present. The last modification of VDBA allows additional electronic control of voltage gain in frame of active element except standard transconductance control. Discussed active elements were used to build very simple multiphase oscillators with minimal complexity as a simple non-tunable alternative to classical conceptions utilizing lossy integrators in phase-shifted loop. Linearly tunable quadrature differential mode (balanced) oscillator or balanced simple triangle and square wave generator were chosen as other useful examples. Features of proposed circuits are discussed and selected examples verified and evaluated by computer simulations with appropriate low-voltage TSMC 0.18 um CMOS technology models.

Keywords

Analog signal processing, low-voltage circuit, voltage differencing inverted buffered amplifier, VDIBA, voltage differencing buffered amplifier, VDBA, multiphase oscillators, quadrature oscillator, triangle and square wave generator, differential output responses, electronic control.

RIV year

2013

Released

11.06.2013

ISBN

1210-2512

Periodical

Radioengineering

Year of study

22

Number

2

State

CZ

Pages from

490

Pages to

504

Pages count

15

Documents

BibTex


@article{BUT100073,
  author="Roman {Šotner} and Jan {Jeřábek} and Norbert {Herencsár}",
  title="Voltage Differencing Buffered/Inverted Amplifiers and Their Applications for Signal Generation",
  annote="This paper presents some interesting new applications in the field of analog signal processing focused on signal generation. A novel modifications of recently developed and studied family of active elements, called voltage differencing buffered amplifier (VDBA) and voltage differencing inverted buffered amplifier (VDIBA) are discussed. Our attention is focused on simple application of active elements like dual output VDBAs (DO-VDBAs) and fully balanced VDBAs (FB-VDBAs), where one or two z terminals and always voltage outputs of both polarities are present. The last modification of VDBA allows additional electronic control of voltage gain in frame of active element except standard transconductance control. Discussed active elements were used to build very simple multiphase oscillators with minimal complexity as a simple non-tunable alternative to classical conceptions utilizing lossy integrators in phase-shifted loop. Linearly tunable quadrature differential mode (balanced) oscillator or balanced simple triangle and square wave generator were chosen as other useful examples. Features of proposed circuits are discussed and selected examples verified and evaluated by computer simulations with appropriate low-voltage TSMC 0.18 um CMOS technology models.",
  chapter="100073",
  number="2",
  volume="22",
  year="2013",
  month="june",
  pages="490--504",
  type="journal article in Web of Science"
}