Title :
A low-cost high-accuracy CMOS smart temperature sensor
Author :
Bakker, A. ; Huijsing, J.H.
Author_Institution :
Delft University of Technology, Delft, Netherlands
Abstract :
A high-accuracy CMOS temperature sensor with ADC and bus interface has been integrated in a 0.7µm CMOS process. Accuracy has been improved by applying a chopper technique and dynamic element matching. The circuit consumes 300µW@3.0V. Uncalibrated accuracy is typically better than 1°C for a temperature range of -20 to +100°C, measured on 112 samples from two different batches.
Keywords :
1f noise; Bipolar transistors; CMOS technology; Circuits; Frequency; Microelectronics; Noise cancellation; Photonic band gap; Registers; Temperature sensors;
Conference_Titel :
Solid-State Circuits Conference, 1999. ESSCIRC '99. Proceedings of the 25th European
Conference_Location :
Duisburg, Germany
