Low-power temperature-independent ambient light sensor

被引：6

作者：

Cho, S. -I. ^{[1
]}

Park, J. -H. ^{[1
]}

Lim, S. -I. ^{[2
]}

Kim, S. ^{[1
]}

Baek, K. -H. ^{[3
]}

机构：

[1] Korea Univ, Dept Elect Engn, Seoul 136701, South Korea

[2] Seokyeong Univ, Dept Comp Engn, Seoul, South Korea

[3] Chung Ang Univ, Sch Elect & Elect Engn, Seoul 156756, South Korea

来源：

ELECTRONICS LETTERS | 2011年 / 47卷 / 17期

关键词：

D O I：

10.1049/el.2011.1506

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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 mu A current and occupying only 640 x 420 mu m area, including a 120 x 120 mm photodiode.

引用

页码：981 / U63

页数：2

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