Title :
A 0.9V 5kS/s resistor-based time-domain temperature sensor in 90nm CMOS with calibrated inaccuracy of −0.6°C/0.8°C from −40°C to 125°C
Author :
Xian Tang ; Kong-Pang Pun ; Wai-Tung Ng
Author_Institution :
Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Hong Kong, China
Abstract :
This paper presents a new low-voltage temperature sensor which uses resistor as the sensing element and digitizes in time domain. Fabricated in 90nm CMOS, the sensor measures an inaccuracy of -0.6°C/0.8°C over -40°C~125°C range and a peak supply sensitivity of 4°C/V after two-point calibration at 25°C and 45°C. It dissipates 11.8μW at a sampling rate of 5kS/s from a 0.9V supply.
Keywords :
CMOS integrated circuits; resistors; temperature sensors; CMOS; low-voltage temperature sensor; peak supply sensitivity; power 11.8 muW; resistor-based time-domain temperature sensor; sampling rate; sensing element; size 90 nm; temperature 25 C; temperature 45 C; two-point calibration; voltage 0.9 V; CMOS integrated circuits; Clocks; Resistors; Temperature distribution; Temperature measurement; Temperature sensors; low-voltage; resistor-based; temperature sensor; time-domain;
Conference_Titel :
Solid-State Circuits Conference (A-SSCC), 2013 IEEE Asian
Conference_Location :
Singapore
Print_ISBN :
978-1-4799-0277-4
DOI :
10.1109/ASSCC.2013.6691009
