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 journalArticle

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 languageEnglish
Pages (from-to)981-983
Number of pages3
JournalElectronics Letters
Volume47
Issue number17
DOIs
Publication statusPublished - 2011 Aug 18

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Cho, S. I., Park, J. H., Lim, S. I., Kim, S., & Baek, K. H. (2011). Low-power temperature-independent ambient light sensor. Electronics Letters, 47(17), 981-983. https://doi.org/10.1049/el.2011.1506