Title :
A 53.4-µW CMOS temperature sensor with an inaccuracy of ±1.9°C (3σ) from −65°C to 165°C
Author :
Lee, Mitchell Sheng-Cheng ; Chen, Teng-Cheng ; Liou, Chia-Yi ; Chiueh, Herming
Author_Institution :
Dept. of Electr. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
A 53.4-μW CMOS temperature sensor with a 3σ inaccuracy of ±1.9°C from -65°C to 165°C is designed and implemented in TSMC 0.18um CMOS technology. The proposed temperature sensor includes a pure-CMOS PTAT circuitry, a pre-amplifier and a low-power Sigma-Delta ADC. The proposed PATA circuit utilized temperature compensation technology to enhance the linearity. This circuit has widest temperature range compare to other designs, which is suitable to be utilized to electronic devices in extreme temperature condition.
Keywords :
CMOS integrated circuits; analogue-digital conversion; detector circuits; preamplifiers; temperature sensors; CMOS temperature sensor; TSMC CMOS technology; extreme temperature condition; low power sigma-delta analog-digital converters; power 53.4 muW; preamplifier; proposed to absolute temperature circuitry; pure CMOS PTAT circuit; size 0.18 mum; temperature -65 C to 165 C; CMOS integrated circuits; CMOS technology; Digital filters; Temperature distribution; Temperature measurement; Temperature sensors;
Conference_Titel :
Sensors, 2011 IEEE
Conference_Location :
Limerick
Print_ISBN :
978-1-4244-9290-9
DOI :
10.1109/ICSENS.2011.6127416
