A Low Power CMOS Temperature Sensor

Shu Chung Yi

doi:10.4028/www.scientific.net/AMM.284-287.1729

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 284-287A Low Power CMOS Temperature Sensor

A Low Power CMOS Temperature Sensor

Abstract:

This Paper Proposed a Low-power Smart Temperature Sensor. the Sensor Consisted of a PTAT Circuit, and a Ring Oscillator. the Current of the PTAT Circuit Was Used to Drive the Ring Oscillator which Generates a Temperature Related Signal. the Sensor Was Implemented by the TSMC CMOS 0.35 µm 2P4M Digital Process. the Core Aµµrea Is only 1105.59 µm². the Power Consumption Is aboutµ 159.15 nw. the Linearity between the Output Frequency and Temperature Is Marked by R-square Rule. the Value of the Linearity Is 0.991 during the Temperature Range. the Proposed Sensor Required only One Supply Voltage. the Core Area Was Small. Therefore, the Sensor Was Suitable for Embedded in any Circuit that Required Temperature Monitoring.

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Periodical:

Applied Mechanics and Materials (Volumes 284-287)

Pages:

1729-1733

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.284-287.1729

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Online since:

January 2013

Authors:

Shu Chung Yi

Keywords:

CMOS Sensor, PTAT, Temperature Sensor

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References

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