Title
Temperature And Supply Voltage Insensitive Relaxation Oscillator Using Voltage Reference
Abstract
These days smart devices are developing rapidly and becoming smaller. This recent trend requires the on-chip oscillator to be smaller and more accurate. A relaxation oscillator, which occupies a small area and consumes low power, is the potential candidate. However, its operation is sensitive to temperature and the supply voltage. Therefore, solution for these issues is very important. In this paper, we design a small area on-chip current-mode relaxation oscillator, that is insensitive to temperature and supply voltage variation, using voltage reference. The operation frequency of the proposed oscillator is 3.01MHz. And the frequency variation is 2.39% when supply voltage change from 1.4V to 2.0V and 1.09% when temperature change from -20 degrees C to 100 degrees C with the supply voltage of 1.8V. This oscillator is designed and fabricated in 0.18 mu m CMOS process, and the oscillator consumes 40 mu W and occupies 0.0196mm(2).
Year
DOI
Venue
2018
10.1109/tencon.2018.8650199
TENCON IEEE Region 10 Conference Proceedings
Keywords
Field
DocType
Current-mode relaxation oscillator,temperature compensation,temperature coefficient,voltage reference
Oscillation,Capacitor,Relaxation oscillator,Computer science,Voltage,Voltage reference,Electronic engineering,Cmos process,Resistor,Electrical engineering,Temperature measurement
Conference
ISSN
Citations 
PageRank 
2159-3442
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
Hoang Van Nguyen100.34
Ji-Hoon Kim291.59
soyoung kim382.08