A 0.5 V Ultra-low Power Quadrature Ring Oscillator

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

In this paper we present a CMOS quadrature ring oscillator operating at 0.5 V. Due to this very low voltage conditions, new project technique using the available terminal of the transistors (bulk) is used in order to reduce the threshold voltage of the transistors, thus improving the voltage headroom. The technique is applied in a conventional inverter-based ring oscillator with a feedback topology capable to generate quadrature signals. Simulations results in a 130 nm CMOS technology shows that a very simple VCO in the GHz range can be obtained, by changing the bulk voltage of transistors (NMOS or PMOS). The circuit operates with less than 50μW achieving a FoM of about -115 dBc/Hz at 10 MHz offset.
Original languageEnglish
Title of host publicationIFIP Advances in Information and Communication Technology
Pages575-581
Volume423
ISBN (Electronic)978-3-642-54734-8
DOIs
Publication statusPublished - 2014
Event5th IFIP WG 5.5/SOCOLNET Doctoral Conference on Computing, Electrical and Industrial Systems, DoCEIS 2014 -
Duration: 1 Jan 2014 → …

Conference

Conference5th IFIP WG 5.5/SOCOLNET Doctoral Conference on Computing, Electrical and Industrial Systems, DoCEIS 2014
Period1/01/14 → …

Fingerprint

Transistors
Electric potential
Variable frequency oscillators
Threshold voltage
Topology
Feedback
Networks (circuits)

Keywords

  • CMOS circuit
  • Low voltage
  • Quadrature RC oscillator
  • Ultra-low power

Cite this

Eusébio, J., Oliveira, L. A. B. G. D., Pires, L. M., & Oliveira, J. P. A. D. (2014). A 0.5 V Ultra-low Power Quadrature Ring Oscillator. In IFIP Advances in Information and Communication Technology (Vol. 423, pp. 575-581) https://doi.org/10.1007/978-3-642-54734-8_64
Eusébio, João ; Oliveira, Luís Augusto Bica Gomes de ; Pires, Luís Miguel ; Oliveira, João Pedro Abreu de. / A 0.5 V Ultra-low Power Quadrature Ring Oscillator. IFIP Advances in Information and Communication Technology. Vol. 423 2014. pp. 575-581
@inproceedings{8573543c5a91454da9ef54b97bbbb159,
title = "A 0.5 V Ultra-low Power Quadrature Ring Oscillator",
abstract = "In this paper we present a CMOS quadrature ring oscillator operating at 0.5 V. Due to this very low voltage conditions, new project technique using the available terminal of the transistors (bulk) is used in order to reduce the threshold voltage of the transistors, thus improving the voltage headroom. The technique is applied in a conventional inverter-based ring oscillator with a feedback topology capable to generate quadrature signals. Simulations results in a 130 nm CMOS technology shows that a very simple VCO in the GHz range can be obtained, by changing the bulk voltage of transistors (NMOS or PMOS). The circuit operates with less than 50μW achieving a FoM of about -115 dBc/Hz at 10 MHz offset.",
keywords = "CMOS circuit, Quadrature RC oscillator, Low voltage, Ultra-low power, CMOS circuit, Low voltage, Quadrature RC oscillator, Ultra-low power",
author = "Jo{\~a}o Eus{\'e}bio and Oliveira, {Lu{\'i}s Augusto Bica Gomes de} and Pires, {Lu{\'i}s Miguel} and Oliveira, {Jo{\~a}o Pedro Abreu de}",
year = "2014",
doi = "10.1007/978-3-642-54734-8_64",
language = "English",
isbn = "978-3-642-54733-1",
volume = "423",
pages = "575--581",
booktitle = "IFIP Advances in Information and Communication Technology",

}

Eusébio, J, Oliveira, LABGD, Pires, LM & Oliveira, JPAD 2014, A 0.5 V Ultra-low Power Quadrature Ring Oscillator. in IFIP Advances in Information and Communication Technology. vol. 423, pp. 575-581, 5th IFIP WG 5.5/SOCOLNET Doctoral Conference on Computing, Electrical and Industrial Systems, DoCEIS 2014, 1/01/14. https://doi.org/10.1007/978-3-642-54734-8_64

A 0.5 V Ultra-low Power Quadrature Ring Oscillator. / Eusébio, João; Oliveira, Luís Augusto Bica Gomes de; Pires, Luís Miguel ; Oliveira, João Pedro Abreu de.

IFIP Advances in Information and Communication Technology. Vol. 423 2014. p. 575-581.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - A 0.5 V Ultra-low Power Quadrature Ring Oscillator

AU - Eusébio, João

AU - Oliveira, Luís Augusto Bica Gomes de

AU - Pires, Luís Miguel

AU - Oliveira, João Pedro Abreu de

PY - 2014

Y1 - 2014

N2 - In this paper we present a CMOS quadrature ring oscillator operating at 0.5 V. Due to this very low voltage conditions, new project technique using the available terminal of the transistors (bulk) is used in order to reduce the threshold voltage of the transistors, thus improving the voltage headroom. The technique is applied in a conventional inverter-based ring oscillator with a feedback topology capable to generate quadrature signals. Simulations results in a 130 nm CMOS technology shows that a very simple VCO in the GHz range can be obtained, by changing the bulk voltage of transistors (NMOS or PMOS). The circuit operates with less than 50μW achieving a FoM of about -115 dBc/Hz at 10 MHz offset.

AB - In this paper we present a CMOS quadrature ring oscillator operating at 0.5 V. Due to this very low voltage conditions, new project technique using the available terminal of the transistors (bulk) is used in order to reduce the threshold voltage of the transistors, thus improving the voltage headroom. The technique is applied in a conventional inverter-based ring oscillator with a feedback topology capable to generate quadrature signals. Simulations results in a 130 nm CMOS technology shows that a very simple VCO in the GHz range can be obtained, by changing the bulk voltage of transistors (NMOS or PMOS). The circuit operates with less than 50μW achieving a FoM of about -115 dBc/Hz at 10 MHz offset.

KW - CMOS circuit

KW - Quadrature RC oscillator

KW - Low voltage

KW - Ultra-low power

KW - CMOS circuit

KW - Low voltage

KW - Quadrature RC oscillator

KW - Ultra-low power

U2 - 10.1007/978-3-642-54734-8_64

DO - 10.1007/978-3-642-54734-8_64

M3 - Conference contribution

SN - 978-3-642-54733-1

VL - 423

SP - 575

EP - 581

BT - IFIP Advances in Information and Communication Technology

ER -

Eusébio J, Oliveira LABGD, Pires LM, Oliveira JPAD. A 0.5 V Ultra-low Power Quadrature Ring Oscillator. In IFIP Advances in Information and Communication Technology. Vol. 423. 2014. p. 575-581 https://doi.org/10.1007/978-3-642-54734-8_64