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A 018-22m CMOS Bioluminescence Detection Lab-on-Chip
描述了一种用于生物发光检测的CMOS芯片,集成光学检测与处理系统。
0.18μm CMOS, 检测速率低于49/48/54lux(30秒积分时间)
生物发光检测CMOS芯片基因表达ATP检测DNA测序
▸创新点1:低暗电流光电探测器设计,采用特殊工艺和结构优化,显著降低暗电流至49/48 lux以下,提升弱光检测灵敏度(方法创新)
▸创新点2:低噪声差分电路架构,通过对称布局和噪声抵消技术,有效抑制共模干扰,实现高信噪比信号采集(电路创新)
▸创新点3:高分辨率13位模数转换器集成,结合相关多次采样和平均技术,将量化误差降低至微伏级,支持微弱生物发光信号数字化(系统创新)
▸创新点4:光纤面板与CMOS芯片直接耦合技术,通过阵列间距匹配和光学优化,实现高效光子捕获与传输(跨学科创新)
Abstract
The paper describes a bioluminescence detection
lab-on-chip consisting of a fiber-optic faceplate with immobilized
luminescent reporters/probes that is directly coupled to an optical
detection and processing CMOS system-on-chip (SoC) fabricated
in a 0.18-
m process. The lab-on-chip is customized for such
applications as determining gene expression using reporter gene
assays, determining intracellular ATP, and sequencing DNA. The
CMOS detection SoC integrates an 8
16 pixel array having the
same pi