Title :
A CMOS temperature sensor with a 3/spl sigma/ inaccuracy of /spl plusmn/0.5/spl deg/C from -50/spl deg/C to 120/spl deg/C
Author :
Pertijs, M. ; Niederkorn, A. ; Xu Ma ; McKillop, B. ; Bakker, A. ; Huijsing, J.
Author_Institution :
Delft Univ. of Technol., Netherlands
Abstract :
A temperature sensor in 0.5/spl mu/m CMOS achieves an accuracy of /spl plusmn/0.5/spl deg/C (3/spl sigma/) from -50/spl deg/C to 120/spl deg/C. It combines chopping, dynamic element matching and curvature correction with calibration at room temperature. Calibration time has been reduced to less than 1s by using an onchip transistor to measure the die temperature.
Keywords :
CMOS integrated circuits; calibration; mixed analogue-digital integrated circuits; temperature sensors; -50 to 120 degC; 0.5 micron; CMOS; calibration; chopping; curvature correction; die temperature; dynamic element matching; onchip transistor; temperature sensor; CMOS process; Calibration; Current measurement; Packaging; Photonic band gap; Resistors; Substrates; Temperature measurement; Temperature sensors; Voltage;
Conference_Titel :
Solid-State Circuits Conference, 2003. Digest of Technical Papers. ISSCC. 2003 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-7707-9
DOI :
10.1109/ISSCC.2003.1234266
