A low power and high speed CMOS Voltage-Controlled Ring Oscillator

Author

Bautista, Daniel Pacheco ; Aranda, Mónico Linares

Author_Institution

Inst. Nacional de Astrofisica, Opt. y Electron., Puebla, Mexico

Volume

4

fYear

2004

fDate

23-26 May 2004

Abstract

In this paper a new Voltage Controlled Ring Oscillator is presented. The proposed VCO uses partial positive feedback in its delay cell, allowing the circuit to operate with single two stages, achieving high speed with reduced power consumption. The new VCO has a wide range of operation frequencies (0.2 at 2.1 GHz), good linearity between the output frequency and the control voltage, phase noise of -90 dBc/Hz at 100 kHz offset and it only consumes 7.01 mW in its central frequency of 1.2 GHz using a 3.3 V power supply. The circuit was fabricated in a 0.35 μm CMOS-AMS process and occupies an area of 67.5×77.5 μm².

Keywords

CMOS analogue integrated circuits; high-speed integrated circuits; integrated circuit noise; network topology; phase noise; power consumption; voltage-controlled oscillators; 0.35 micron; 1.2 GHz; 100 kHz; 2.1 GHz; 3.3 V; 7.01 mW; CMOS-AMS process; VCO; delay cell; high speed CMOS voltage controlled ring oscillator; low power CMOS voltage controlled ring oscillator; phase noise; positive feedback; power consumption; Centralized control; Delay; Energy consumption; Feedback circuits; Frequency; Linearity; Phase noise; Ring oscillators; Voltage control; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on

Print_ISBN

0-7803-8251-X

Type

conf

DOI

10.1109/ISCAS.2004.1329113

Filename

1329113