A 0.5 V Ultra-low Power Quadrature Ring Oscillator

João Eusébio; Luís Augusto Bica Gomes de Oliveira; Luís Miguel  Pires; João Pedro Abreu de Oliveira

doi:10.1007/978-3-642-54734-8_64

A 0.5 V Ultra-low Power Quadrature Ring Oscillator

João Eusébio, Luís Augusto Bica Gomes de Oliveira, Luís Miguel Pires, João Pedro Abreu de Oliveira

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

3 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 language	English
Title of host publication	IFIP Advances in Information and Communication Technology
Pages	575-581
Volume	423
ISBN (Electronic)	978-3-642-54734-8
DOIs	https://doi.org/10.1007/978-3-642-54734-8_64
Publication status	Published - 2014
Event	5th IFIP WG 5.5/SOCOLNET Doctoral Conference on Computing, Electrical and Industrial Systems (DoCEIS) - Costa da Caparica, Portugal Duration: 7 Apr 2014 → 9 Apr 2014

Conference

Conference	5th IFIP WG 5.5/SOCOLNET Doctoral Conference on Computing, Electrical and Industrial Systems (DoCEIS)
Country/Territory	Portugal
City	Costa da Caparica
Period	7/04/14 → 9/04/14

Keywords

CMOS circuit
Low voltage
Quadrature RC oscillator
Ultra-low power

Access to Document

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

Cite this

@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",

note = "5th IFIP WG 5.5/SOCOLNET Doctoral Conference on Computing, Electrical and Industrial Systems (DoCEIS) ; Conference date: 07-04-2014 Through 09-04-2014",

}

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), Costa da Caparica, Portugal, 7/04/14. https://doi.org/10.1007/978-3-642-54734-8_64

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

T2 - 5th IFIP WG 5.5/SOCOLNET Doctoral Conference on Computing, Electrical and Industrial Systems (DoCEIS)

Y2 - 7 April 2014 through 9 April 2014

ER -

A 0.5 V Ultra-low Power Quadrature Ring Oscillator

Abstract

Conference

Keywords

Access to Document

Fingerprint

Cite this