Title :
Micropower CMOS Smart Temperature Sensor
Author :
Bakker, A. ; Huijsing, J.H.
Author_Institution :
Electronic Instrumentation Laboratory, Department of Electrical Engineering, Delft University of Technology, Mekelweg 4, 2628 CD Delft, The Netherlands. Tel.: +31-15-785747, Fax: +31-15-785755.
Abstract :
A CMOS smart temperature sensor with digital output is presented which consumes less than 7¿W. It operates at supply voltages down to 2.2V. The circuit uses substrate bipolars as temperature sensor. Conversion to the digital domain is done by a sigma-delta converter, which makes the circuit highly insensitive to digital interference. In the temperature range from ¿40 to + 120°C, inaccuracy is ±1°C after calibration at two temperatures.
Keywords :
Bipolar transistors; CMOS technology; Delta-sigma modulation; Integrated circuit technology; Interference; Power generation; Proportional control; Switching converters; Temperature sensors; Voltage;
Conference_Titel :
Solid-State Circuits Conference, 1995. ESSCIRC '95. Twenty-first European
Conference_Location :
Lille, France
Print_ISBN :
2-86332-180-3
