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一个1000fps高动态范围的全球快门CMOS图像传感器与全温度计代码电流转向坡道.

Liqiang Han1, Ganlin Cheng1, Xu Zhang1

  • 1Beijing Institute of Space Mechanics and Electricity, Beijing 100094, China.

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PubMed
概括
此摘要是机器生成的。

这项研究介绍了一种高动态范围的全球快门CMOS图像传感器,其可处理每秒1000. 它详细介绍了像素架构,噪声分析,以及用于高级成像应用的坡道生成器设计.

关键词:
这是一个CMOS图像传感器.电流转向的DAC可以调节电流.全球快门像素全球快门像素读音噪声 读音噪声 读音噪声

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科学领域:

  • 电气工程 电气工程
  • 图像传感器技术图像传感器技术
  • 半导体设备 半导体设备

背景情况:

  • 全球快门CMOS图像传感器对于捕捉快速移动的物体而没有运动工件至关重要.
  • 实现高动态范围 (HDR) 和高率同时提出了重大设计挑战.

研究的目的:

  • 为了展示一个新的1024 × 512,1000/秒,高动态范围的全球快门CMOS图像传感器.
  • 分析像素噪声,非线性和图像延迟特征.
  • 讨论坡道发电机和比较器的设计,以获得最佳性能.

主要方法:

  • 使用电压域全球快门架构,具有24 μm × 24 μm的像素距.
  • 在单个中集成高增益和低增益信号捕获.
  • 采用了一个12位全温度计代码,为道发电机提供电流调节的DAC.

主要成果:

  • 实现了95dB的综合动态范围和620ke的充分井容量.
  • 分析了由于寄生电容导致的像素噪声,非线性和图像滞后.
  • 评估了坡道发电机的非线性响应和柱子读出噪声.

结论:

  • 开发的CMOS图像传感器在率和动态范围方面表现出色.
  • 分析提供了关于减轻噪音和图像滞后等非理想因素的见解.
  • 坡道发电机和比较器的设计考虑对于未来的高性能传感器开发至关重要.