Title :
Time-domain temperature sensor using two stage vernier type time to digital converter for mobile application
Author :
Minsoo Kang ; Jinwook Burm
Author_Institution :
Dept. of Electron. Eng., Sogang Univ., Seoul, South Korea
Abstract :
This paper presents a time-domain temperature sensor using two stage vernier type time to digital converter for mobile application. A time-domain temperature sensor of moderate performance, low power, and low area is designed for mobile application. The temperature sensor is composed of pulse generator and time to digital converter. The temperature sensor generates a pulse with proportional to the temperature by using temperature dependent delay line and temperature insensitive delay line. Then, time-to-digital(TDC) converter is used to convert the pulse width to a corresponding digital code. To enhance the resolution for temperature sensor two stage vernier type TDC is proposed. The time-domain temperature sensor is designed using a 0.18 μm CMOS process. The temperature range is 0 to 100°C and resolution is better than 0.086°C.
Keywords :
CMOS integrated circuits; mobile radio; pulse generators; temperature sensors; time-digital conversion; CMOS process; TDC converter; Vernier type time-to-digital converter; mobile application; pulse generator; size 0.18 micron; temperature 0 C to 100 C; temperature dependent delay line; temperature insensitive delay line; time-domain temperature sensor; Delay; Delay lines; Logic gates; Temperature dependence; Temperature measurement; Temperature sensors; Time domain analysis; Temperature sensor; Time domain; Time to digital converter;
Conference_Titel :
SoC Design Conference (ISOCC), 2012 International
Conference_Location :
Jeju Island
Print_ISBN :
978-1-4673-2989-7
Electronic_ISBN :
978-1-4673-2988-0
DOI :
10.1109/ISOCC.2012.6406888
