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Journal Articles Sensors Year : 2018

A Temperature-Hardened Sensor Interface with a 12-Bit Digital Output Using a Novel Pulse Width Modulation Technique

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.
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lirmm-01768824 , version 1 (17-04-2018)

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Emna Chabchoub, Franck Badets, Frédérick Mailly, Pascal Nouet, Mohamed Masmoudi. A Temperature-Hardened Sensor Interface with a 12-Bit Digital Output Using a Novel Pulse Width Modulation Technique. Sensors, 2018, 18 (4), pp.1107-1227. ⟨10.3390/s18041107⟩. ⟨lirmm-01768824⟩
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