A 2 e Noise 1.3Megapixel CMOS Sensor

Abstract

Noise in the CMOS sensor with buried photodiode and column-parallel single-slope ADCs having a preamp is analyzed. A 1.3 Megapixel sensor built using such an architecture in 0.18um Micron CMOS sensor process sets up a new benchmark for CMOS sensors in noise: 1.5 electrons at the gain of 32. 

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