Title
A Low Power Current Reused Quadrature Vco For Biomedical Applications
Abstract
This paper presents a low power current reusing quadrature voltage controlled oscillator for use in implantable electronics operating in the 402 MHz to 405 MHz Medical Implant Communication Service (MICS) frequency band. The oscillator was designed in IBM CMOS8RF 0.13 mu m CMOS technology and simulated using Cadence IC5.141. The current reuse structure draws half the bias current as a conventional quadrature voltage controlled oscillator while exhibiting performance comparable to or exceeding that of previously published designs. Simulation results show that the oscillator phase noise is -127 dBc/Hz and consumes 1 mW of power from a 1 V supply. When the supply voltage is scaled to 0.65 V and biased for the same current consumption, the power consumption is reduced to 650 mu W with phase noise of -111 dBc/Hz, which is almost 50% less power consumption when compared to oscillators in the same frequency band. The tuning range of the oscillator is 401.25 MHz to 407.5 MHz, enough to cover the MICS frequency band.
Year
DOI
Venue
2009
10.1109/ISCAS.2009.5117837
ISCAS: 2009 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-5
Keywords
Field
DocType
transceivers,oscillators,low power electronics,phase noise,wireless communication,oscillations,cmos integrated circuits,oscillator phase noise,radio frequency,cmos technology
Frequency drift,Oscillator phase noise,Computer science,Frequency band,Phase noise,CMOS,Electronic engineering,Voltage-controlled oscillator,Vackář oscillator,Electrical engineering,Low-power electronics
Conference
Citations 
PageRank 
References 
3
0.60
5
Authors
2
Name
Order
Citations
PageRank
T. Khan130.60
Kaamran Raahemifar218445.19