一个低噪音和高集成的读取IC与像素级单端CDS用于短波红外焦平面阵列
Hongyi Wang1,2, Songlei Huang1,2, Zhenghua Peng1,2
1National Key Laboratory of Infrared Detection Technologies, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China.
Sensors (Basel, Switzerland)
|February 13, 2026
概括
我们开发了一个紧的,单端的电荷域架构,用于短波红外 (SWIR) 检测. 这种设计大大降低了读出集成电路 (ROIC) 的噪声,提高了要求高的应用程序的灵敏度.
科学领域:
- 电气工程 电气工程
- 光电学是指光电子产品.
- 传感器技术 传感器技术
背景情况:
- 短波红外 (SWIR) 检测的高灵敏度对于天文学和高光谱成像至关重要.
- 传统的读取集成电路 (ROIC) 面临着差异像素和相关双采样 (CDS) 的空间限制.
- 尽量减少噪音和最大化密度是先进SWIR ROIC的关键挑战.
研究的目的:
- 为SWIR ROICs提出一种新的紧,像素级,单端的充电域架构.
- 解决空间限制,提高SWIR检测系统中的噪声性能.
- 为了实现高密度的SWIR应用,提高灵敏度.
主要方法:
- 在每个像素中实施了单端相关双采样 (CDS).
- 利用电容重复使用技术来优化噪音区域的权衡.
- 使用180纳米CMOS技术制造了ROIC.
主要成果:
- 与传统架构相比,实现了0.50mV的噪声底部,降低了70%左右.
- 与集成读取 (IWR) 模式和压制重置和1/f噪声的证明兼容性.
- 实现了高线性 (0.9999),低功耗 (<200 mW) 和高工作频率 (>200 Hz).
结论:
- 拟议的紧,单端的电荷域架构有效地提高了SWIR检测灵敏度.
- 这种设计为需要低噪音和高性能的高密度SWIR系统提供了可行的解决方案.
- 该架构支持集成然后读取 (ITR) 和集成读取时 (IWR) 模式,具有增强选择.
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