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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
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.
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页码:420 / +
页数:2
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