A 13.8-MHz RC Oscillator with Self-Calibration for ±0.4% Temperature Stability from -55 to 125◦C

A 13.8-MHz RC Oscillator with Self-Calibration for ±0.4% Temperature Stability from -55 to 125◦C

This paper articulates a novel oscillator design that can provide stable frequency operation over a wide temperature range with self-calibration technique. A simple ring oscillator is implemented to sense the temperature variation, and some digital circuits tune the output frequency according to the...

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Bibliographic Details
Main Authors: Wang, Jiacheng, Koh, Leong Hai, Goh, Wang Ling
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2015
Subjects:
System-on-chip
Temperature sensors
Calibration
Capacitors
Resistors
Ring oscillator (RO)
Online Access:https://hdl.handle.net/10356/79237
http://hdl.handle.net/10220/38806
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Institution: Nanyang Technological University
Language: English
Description
Summary:This paper articulates a novel oscillator design that can provide stable frequency operation over a wide temperature range with self-calibration technique. A simple ring oscillator is implemented to sense the temperature variation, and some digital circuits tune the output frequency according to the sensing outcomes. Simulation results show that the circuit can generate a stable frequency of 13.8MHz. The power consumption of the whole system is only 52.8µW. The temperature coefficient is less than ±0.4% ranging from -55 to 125 ◦C in the worst process corner whereas the supply voltage is ultra-low at 0.6V.

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