Title :
Analog Temperature Compensation for Capacitive Sensor Interfaces
Author :
Grigorie, Mihaela ; de Raad, Christina ; Krummenacher, François ; Enz, Christian
Author_Institution :
Swiss Federal Institute of Technology, Electronics Labs EL-LEG Ecublens, CH-1015 Lausanne, Switzerland. E-mail: grigorie@leg.de.epfl.ch
Abstract :
This paper presents an analog temperature compensation principle for capacitive sensor interfaces. For this purpose a voltage reference proportional to a reference voltage (VREF) and to relative temperature (¿T) has been designed and integrated in a 1¿m CMOS process. The achieved temperature measurement precision is better than 0.5°C over an operating range of 100°C.
Keywords :
Argon; Calibration; Capacitive sensors; Capacitors; Chromium; Circuits; Photonic band gap; Temperature dependence; Temperature sensors; Voltage;
Conference_Titel :
Solid-State Circuits Conference, 1996. ESSCIRC '96. Proceedings of the 22nd European
Conference_Location :
Neuchatel, Switzerland
Print_ISBN :
2-86332-197-8
