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- Title
A Temperature-Hardened Sensor Interface with a 12-Bit Digital Output Using a Novel Pulse Width Modulation Technique.
- Authors
Chabchoub, Emna; Badets, Franck; Mailly, Frédérick; Nouet, Pascal; Masmoudi, Mohamed
- Abstract
A fully integrated sensor interface for a wide operational temperature range is presented. It translates the sensor signal into a pulse width modulated (PWM) signal that is then converted into a 12-bit digital output. The sensor interface is based on a pair of injection locked oscillators used to implement a differential time-domain architecture with low sensitivity to temperature variations. A prototype has been fabricated using a 180 nm partially depleted silicon-on-insulator (SOI) technology. Experimental results demonstrate a thermal stability as low as 65 ppm/°C over a large temperature range from −20 °C up to 220 °C.
- Publication
Sensors (14248220), 2018, Vol 18, Issue 4, p1107
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s18041107