A 120-dB dynamic range CMOS image sensor with programmable power responsivity

被引：0
|
作者：
Stoppa, David [1 ]
Simoni, Andrea [1 ]
Baschirotto, Andrea [2 ]
Vatteroni, Monica [3 ]
Sartori, Alvise [3 ]
机构：
[1] IRST, Ctr Ric Sci & Tecnol, ITC, Via Sommar 18, I-38050 Trento, Italy
[2] Univ Salento, Dept Innovat Engn, Lecce, Italy
[3] Neuricam SpA, Trento, Italy
来源：
ESSCIRC 2006: PROCEEDINGS OF THE 32ND EUROPEAN SOLID-STATE CIRCUITS CONFERENCE | 2006年
关键词：
CMOS active pixel; wide dynamic range; image sensor; digital cameras; video camera;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
A high dynamic range CMOS image sensor providing a user-programmable power responsivity curve is presented. Each 15x15 mu m(2)-pixel cell integrates, besides a 4T active pixel structure, a voltage comparator and an analog memory to implement a time-to-saturation scheme while also providing the standard integrated photo-current signal. A 140x140-pixel array has been fabricated in a 0.35-mu m, 3.3-V standard CMOS technology. The sensor features a typical dynamic range of 120 dB with a temporal noise lower than 0.13% and a fixed pattern noise of 0.4% (1.7%) at low (high) irradiance.
引用
收藏
页码：420 / +
页数：2
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