Title :
Low-voltage, low-power, high linearity front-end thermal sensing element
Author :
Crepaldi, Paulo C. ; Moreno, Robson L. ; Pimenta, Tales C.
Author_Institution :
Microelectron. Group, Fed. Univ. of Itajuba, Itajuba, Brazil
fDate :
9/1/2010 12:00:00 AM
Abstract :
A CMOS implementation of a low-voltage, low-power, high linearity front-end thermal sensing element is described. It is based on CMOS transistors operating in weak inversion. The power supply can be as low as 0.8 V and the power consumption is less than 100 nW. The inaccuracy (3 ) is about 0.24 C at room temperature and the linearity (fitting index R2) is greater than 0.99. These features make the sensor suitable for biomedical applications.
Keywords :
CMOS integrated circuits; temperature sensors; CMOS transistors; biomedical applications; fitting index; high linearity front-end thermal sensing element; low-power front-end thermal sensing element; low-voltage front-end thermal sensing element; power consumption;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.1346
