Title :
Low power and more accurate temperature sensor with an integrated dual slope AD converter
Author :
Nagahisa, Takeshi ; Kubota, Shinichi ; Watanabe, Hirobumi
Author_Institution :
Ricoh Co. Ltd., Osaka, Japan
Abstract :
A digital temperature sensor with an integrated dual slope ADC is recently proposed. In the present study, a smaller digital temperature sensor is realized by integrating a dual-slope capacitor, which is usually attached to an integrated circuit device. A proper designed circuit can supply a voltage of 2.3 V and a consumption current of 50 μA. Adopting the CV characteristics of the MOS capacitor allows the sensing accuracy to be improved by 0.5°C.
Keywords :
MOS capacitors; analogue-digital conversion; integrated circuit design; low-power electronics; temperature sensors; CV characteristics; MOS capacitor; circuit design; current 50 muA; digital temperature sensor; dual-slope capacitor; integrated circuit device; integrated dual slope AD converter; sensing accuracy; temperature 0.5 degC; voltage 2.3 V; Accuracy; Capacitors; Discharges (electric); MOS capacitors; Temperature sensors; Timing; CV characteristics of the MOS capacitor; Integrated Dual Slope AD Converter; Low Power;
Conference_Titel :
Future of Electron Devices, Kansai (IMFEDK), 2012 IEEE International Meeting for
Conference_Location :
Osaka
Print_ISBN :
978-1-4673-0837-3
DOI :
10.1109/IMFEDK.2012.6218588
