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An Ultra-Low-Noise Swing-Boosted Differential Relaxation Oscillator in 0.18-mu m CMOS

Title
An Ultra-Low-Noise Swing-Boosted Differential Relaxation Oscillator in 0.18-mu m CMOS
Authors
Lee, JunghyupGeorge, Arup KocheethraJe, Minkyu
DGIST Authors
Lee, Junghyup
Issue Date
2020-09
Citation
IEEE Journal of Solid-State Circuits, 55(9), 2489-2497
Type
Article
Article Type
Article
Author Keywords
CMOSjitterlow phase noiserelaxation oscillatorsswing-boosting
Keywords
LOW-POWERSENSORTIMER
ISSN
0018-9200
Abstract
This article presents an ultra-low-noise differential relaxation oscillator that achieves a phase noise figure of merits (FoMs) of 157.7 and 162.1 dBc/Hz, respectively, at 1- and 100-kHz frequency offsets. The oscillator is inherently robust against 1/f noise, while swing-boosting minimizes the phase noise arising out of thermal noise. Furthermore, an inverter-based differential comparator maximizes power efficiency, enabling FoMs close to the fundamental limits. Operating at 10.5 MHz and consuming 219.8 μ W from a 1.4-V supply, the oscillator achieves a period jitter of 9.86 psrms, equivalent to a relative jitter of 0.01%. The oscillator occupies an active area of 0.015 mm2 in a 0.18- μ m standard CMOS process.
URI
http://hdl.handle.net/20.500.11750/12561
DOI
10.1109/JSSC.2020.2987681
Publisher
Institute of Electrical and Electronics Engineers
Related Researcher
  • Author Lee, Junghyup Integrated Nano-Systems Laboratory
  • Research Interests Analog and Mixed Signal IC Design; Smart Sensor Systems; Bio-medical ICs and Body Channel Communication Systems
Files:
There are no files associated with this item.
Collection:
Department of Information and Communication EngineeringIntegrated Nano-Systems Laboratory1. Journal Articles


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