Paper Info
Title
A 68/36ppm/<sup>○</sup>C Tc 32.768Khz-To-1Mhz Rc-Based Oscillator With 72/6Pj Start-Up Energy
Abstract
This paper describes a 32.768kHz-to-1MHz RC-based oscillator (RCO) suitable for high- and low-duty-cycle sleep-mode timers in emerging sensor node applications. In contrast to crystal oscillators (XO) based frequency references which employ long and energy intensive restarts, the proposed RCO achieves a 1000X reduction in restarting time. Measurement shows that the implemented RCO achieves a temperature stability of 68.5ppm/ <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">○</sup> C @32.768kHz and 37.5ppm/ <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">○</sup> C @1MHz. A proposed autonomous digital scheme uses coarse and fine tuning to compensate for process and temperature variations. Measurements report an energy efficiency of 1.46nW/kHz@1MHz occupying an area of 0.055mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> in a pure digital 180nm CMOS process node.
Year
DOI
Venue
2019
10.1109/CICC.2019.8780374
2019 IEEE Custom Integrated Circuits Conference (CICC)
Keywords
Field
DocType
RC-based oscillator,RCO,high-duty-cycle sleep-mode timers,sensor node application,autonomous digital scheme,CMOS process,crystal oscillators based frequency references,low-duty-cycle sleep-mode timers,energy 72.0 pJ,energy 6.0 pJ,frequency 1.0 MHz to 32.768 kHz
Sensor node,Oscillation,Start up,Efficient energy use,Computer science,Crystal oscillator,Fine-tuning,Electronic engineering,Time–frequency analysis,Temperature measurement
Conference
ISSN
ISBN
Citations 
0886-5930
978-1-5386-9396-4
0
PageRank 
References 
Authors
0.34
3
6
Name
Order
Citations
PageRank
Hector Gomez112.12
Julian Arenas201.01
Camilo Rojas301.01
David Reyes400.34
Alex Mantilla500.34
Elkim Roa6124.85