CMOS colpitts LC reference oscillator with 70ppm absolute frequency accuracy within 0 – 80 °C

Author

Ates, Erdogan Ozgur ; Aksin, Devrim Yilmaz ; Basyurt, Pinar Basak

Author_Institution

Mikroelektron. RD Design Center, Istanbul, Turkey

fYear

2009

fDate

2-5 Aug. 2009

Firstpage

1002

Lastpage

1005

Abstract

This paper presents design and simulation of two temperature compensated LC Colpitts reference oscillator. First uses an on-chip differential inductor while the other one uses bondwire inductor. Technology is 0.35 mum 2P/4M CMOS technology with high resistivity poly and thick metal option. Oscillator with on-chip differential inductor consumes 7.5 mA from 2.5 V supply and absolute peak frequency deviation is 70 ppm within 0-80degC and oscillator with bondwire inductor consumes 1.5 mA from 2.5 V supply and absolute peak frequency deviation is 150 ppm between 0-80degC. Nominal operating frequency is 1.5 GHz for both oscillators.

Keywords

CMOS integrated circuits; inductors; integrated circuit design; oscillators; reference circuits; Colpitts LC reference oscillator; absolute frequency accuracy; bondwire inductor; current 7.5 mA; frequency 1.5 GHz; on-chip differential inductor; temperature 0 degC to 80 degC; voltage 2.5 V; Bonding; Capacitance; Conductivity; Costs; Frequency synthesizers; Inductance; Inductors; Micromechanical devices; Oscillators; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2009. MWSCAS '09. 52nd IEEE International Midwest Symposium on

Conference_Location

Cancun

ISSN

1548-3746

Print_ISBN

978-1-4244-4479-3

Electronic_ISBN

1548-3746

Type

conf

DOI

10.1109/MWSCAS.2009.5235970

Filename

5235970