Low Power Smart Sensor for Accurate Temperature Measurements.

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Abstract

A low power smart temperature sensor followed by an SC amplifier, buffer stage and a 12bit Successive-Approximation analogue-digital converter (ADC) for autonomous multi-sensor systems is presented. The proposed design is accurate within 0.1C over the temperature range of 55°C to 125°C. A PTAT source like the one presented in [1] was used as a high accuracy temperature sensor. The read-out enables a differential reading of the reference and actual temperature. The succeeding ADC digitizes the output with a bit-clock of 50-kHz. The power consumption with a 1.2V supply is 0.1μW. The ADC has a Figure-of-Merit of 66 fJ/conversion-step. The whole system is implemented in the NXP CMOS 0.14m technology. The die area is 0.27 mmp2 and the whole system consumes less than 16μW.

Autore Pugliese

Tutti gli autori

  • De Venuto D , Stikvoort E

Titolo volume/Rivista

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Anno di pubblicazione

2011

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Numero di citazioni Wos

Nessuna citazione

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Numero di citazioni Scopus

3

Ultimo Aggiornamento Citazioni

2017-04-21 03:20:17

Settori ERC

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Codici ASJC

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