Publication result detail

Current and Voltage Mode Multiphase Sinusoidal Oscillators Using CBTAs

SAGBAS, M.; AYTEN, U.; HERENCSÁR, N.; MINAEI, S.

Original Title

Current and Voltage Mode Multiphase Sinusoidal Oscillators Using CBTAs

English Title

Current and Voltage Mode Multiphase Sinusoidal Oscillators Using CBTAs

Type

WoS Article

Original Abstract

Current-mode (CM) and voltage-mode (VM) multiphase sinusoidal oscillator (MSO) structures using current backward transconductance amplifier (CBTA) are proposed. The proposed oscillators can generate n current or voltage signals (n being even or odd) equally spaced in phase. n+1 CBTAs, n grounded capacitors and a grounded resistor are used for nth-state oscillator. The oscillation frequency can be independently controlled through transconductance (gm) of the CBTAs which are adjustable via their bias currents. The effects caused by the non-ideality of the CBTA on the oscillation frequency and condition have been analyzed. The performance of the proposed circuits is demonstrated on third-stage and fifth-stage MSOs by using PSPICE simulations based on the 0.25 um TSMC level-7 CMOS technology parameters.

English abstract

Current-mode (CM) and voltage-mode (VM) multiphase sinusoidal oscillator (MSO) structures using current backward transconductance amplifier (CBTA) are proposed. The proposed oscillators can generate n current or voltage signals (n being even or odd) equally spaced in phase. n+1 CBTAs, n grounded capacitors and a grounded resistor are used for nth-state oscillator. The oscillation frequency can be independently controlled through transconductance (gm) of the CBTAs which are adjustable via their bias currents. The effects caused by the non-ideality of the CBTA on the oscillation frequency and condition have been analyzed. The performance of the proposed circuits is demonstrated on third-stage and fifth-stage MSOs by using PSPICE simulations based on the 0.25 um TSMC level-7 CMOS technology parameters.

Keywords

Multiphase sinusoidal oscillator, current backward transconductance amplifier (CBTA), current-mode circuits, voltage-mode circuits, active networks.

Key words in English

Multiphase sinusoidal oscillator, current backward transconductance amplifier (CBTA), current-mode circuits, voltage-mode circuits, active networks.

Authors

SAGBAS, M.; AYTEN, U.; HERENCSÁR, N.; MINAEI, S.

RIV year

2014

Released

01.04.2013

ISBN

1210-2512

Periodical

Radioengineering

Volume

22

Number

1

State

Czech Republic

Pages from

24

Pages to

33

Pages count

10

BibTex

@article{BUT101234,
  author="Mehmet {Sagbas} and Umut E. {Ayten} and Norbert {Herencsár} and Shahram {Minaei}",
  title="Current and Voltage Mode Multiphase Sinusoidal Oscillators Using CBTAs",
  journal="Radioengineering",
  year="2013",
  volume="22",
  number="1",
  pages="24--33",
  issn="1210-2512"
}