Title :
A low-complexity, low phase noise, low-voltage phase-aligned ring oscillator in 90 nm digital CMOS
Author :
Borremans, J. ; Ryckaert, J. ; Wambacq, P. ; Kuijk, M. ; Craninckx, J.
Author_Institution :
IMEC, Leuven
Abstract :
An 8-phase phase-aligned ring oscillator in 90 nm digital CMOS is presented that operates up to 2 GHz. The low-complexity circuit consumes 13 mW at 2 GHz and 1.2 mW at 400 MHz, while a flat in-band phase noise below -120 dBc/Hz is achieved, in close agreement with the presented theory. The circuit occupies an area of 0.008 mm2.
Keywords :
CMOS digital integrated circuits; UHF oscillators; low-power electronics; 8-phase phase-aligned ring oscillator; digital CMOS; frequency 2 GHz; frequency 400 MHz; power 1.2 mW; power 13 mW; size 90 nm; Circuits; Clocks; Delay; Frequency; Injection-locked oscillators; Jitter; Phase locked loops; Phase noise; Ring oscillators; Voltage-controlled oscillators;
Conference_Titel :
Solid-State Circuits Conference, 2008. ESSCIRC 2008. 34th European
Conference_Location :
Edinburgh
Print_ISBN :
978-1-4244-2361-3
Electronic_ISBN :
1930-8833
DOI :
10.1109/ESSCIRC.2008.4681879
