Title :
A 3 μW, 400 MHz divide-by-5 injection-locked frequency divider with 56% lock range in 90nm CMOS
Author :
Hu, Julie R. ; Otis, Brian P.
Author_Institution :
Dept. of Electr. Eng., Univ. of Washington, Seattle, WA
fDate :
June 17 2008-April 17 2008
Abstract :
An ultra-low power injection locked frequency divider (ILFD) is presented and demonstrated. Based on a 5-stage single ended ring oscillator, the ILFD achieves a lock range of 56% at a division ratio of 5 in the medical implant communications service (MICS) and the 433 MHz ISM frequency bands. The ILFD is implemented in a 90 nm CMOS process. It consumes 3 muW of power from a 1.0 V supply and 100 mum2 of area. The circuit achieves a frequency divider figure-of-merit of 134 GHz/mW.
Keywords :
CMOS integrated circuits; frequency dividers; injection locked oscillators; frequency 400 MHz; injection locked frequency divider; medical implant communication service; power 3 muW; ring oscillator; size 90 nm; voltage 1 V; CMOS process; Cutoff frequency; Energy consumption; Frequency conversion; Frequency synthesizers; Injection-locked oscillators; Microwave integrated circuits; Ring oscillators; Topology; Transceivers; GHz/mW.; ILFD; MICS; frequency division; injection locked frequency divider; injection locking; low power design; ring oscillator;
Conference_Titel :
Radio Frequency Integrated Circuits Symposium, 2008. RFIC 2008. IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-1808-4
Electronic_ISBN :
1529-2517
DOI :
10.1109/RFIC.2008.4561525
