摘要
本文介绍了一种用于目标跟踪和坐标定位的新型集成阵列四象限CMOS光电传感器.该传感器采用上华0.6μm标准CMOS工艺制造,实现了象限传感器与后端信号处理电路的单片集成.该传感器由16×16单元有源光电管阵列,相关二次采样电路和时序控制电路组成.每个有源光电管的大小为60μm×60μm,其感光面积百分比(FillFactor)为64.5%.通过变频二次扫描的工作模式可将传感器的感光动态范围增大为84dB.传感器的感光灵敏度为2V/lx·s,工作速度根据目标照度可在2ms/帧～64ms/帧范围内调整.
A new integrated arrayed 4 quadrants CMOS photo-electric sensor used for target coordinate obtaining and target tracking is designed and fabricated in a 0.6 μ m standard CMOS process. It realizes the single chip integration of the quadrants sensor and subsequent signal processing circuits. It consists of 16 × 16 active photodiodes (PD) array, correlated double sampling (CDS) circuits and digital control part. The area of each active PD is 60 μm × 60 μ m and the fill factor is 64.5%. The dynamic range (DR) of the sensor can be enlarged with reset frequency adjustment double scanning method. As a result, 84 dB DR can be obtained. The sensitivity of sensor can be 2 V/lx · s and the sensor operation speed can be 2 ms/frame-64 ms/frame according to illuminance intensity.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2005年第5期928-930,共3页
Acta Electronica Sinica
基金
国家自然科学基金(No.90307009)
