Low-power temperature-independent ambient light sensor

S. I. Cho; J. H. Park; S. I. Lim; S. Kim; K. H. Baek

doi:10.1049/el.2011.1506

Low-power temperature-independent ambient light sensor

S. I. Cho, J. H. Park, S. I. Lim, S. Kim, K. H. Baek

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Presented is an ambient light sensor (ALS) for portable electronic devices. The proposed ALS employs illuminance-dependent resolution adjustment and dark current compensation auxiliary circuits to consume low power, occupy small area, as well as achieve temperature-independent linearity. The ALS can convert illuminance of up to 16Klx to digital data without temperature-dependent dark current disturbance, while consuming a maximum 75 μA current and occupying only 640 × 420 μm area, including a 120 × 120 μm photodiode.

Original language	English
Pages (from-to)	981-983
Number of pages	3
Journal	Electronics Letters
Volume	47
Issue number	17
DOIs	https://doi.org/10.1049/el.2011.1506
Publication status	Published - 2011 Aug 18

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1049/el.2011.1506

Cite this

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abstract = "Presented is an ambient light sensor (ALS) for portable electronic devices. The proposed ALS employs illuminance-dependent resolution adjustment and dark current compensation auxiliary circuits to consume low power, occupy small area, as well as achieve temperature-independent linearity. The ALS can convert illuminance of up to 16Klx to digital data without temperature-dependent dark current disturbance, while consuming a maximum 75 μA current and occupying only 640 × 420 μm area, including a 120 × 120 μm photodiode.",

author = "Cho, {S. I.} and Park, {J. H.} and Lim, {S. I.} and S. Kim and Baek, {K. H.}",

year = "2011",

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AU - Cho, S. I.

AU - Park, J. H.

AU - Lim, S. I.

AU - Kim, S.

AU - Baek, K. H.

PY - 2011/8/18

Y1 - 2011/8/18

N2 - Presented is an ambient light sensor (ALS) for portable electronic devices. The proposed ALS employs illuminance-dependent resolution adjustment and dark current compensation auxiliary circuits to consume low power, occupy small area, as well as achieve temperature-independent linearity. The ALS can convert illuminance of up to 16Klx to digital data without temperature-dependent dark current disturbance, while consuming a maximum 75 μA current and occupying only 640 × 420 μm area, including a 120 × 120 μm photodiode.

AB - Presented is an ambient light sensor (ALS) for portable electronic devices. The proposed ALS employs illuminance-dependent resolution adjustment and dark current compensation auxiliary circuits to consume low power, occupy small area, as well as achieve temperature-independent linearity. The ALS can convert illuminance of up to 16Klx to digital data without temperature-dependent dark current disturbance, while consuming a maximum 75 μA current and occupying only 640 × 420 μm area, including a 120 × 120 μm photodiode.

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DO - 10.1049/el.2011.1506

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ER -

Low-power temperature-independent ambient light sensor

Abstract

ASJC Scopus subject areas

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