气候变化领域集成服务门户(CCPortal): A Novel 512x8 ROIC with Time-Delayed-Integration for MW Infrared Focal Plane Array

CCPortal

DOI	10.1117/12.900802
	A Novel 512x8 ROIC with Time-Delayed-Integration for MW Infrared Focal Plane Array
	Zhang Jun-ling; Feng Qi; Chen Hong-lei; Huang Ai-bo; Ding Rui-jun; Ni Yun-zhi
发表日期	2011
ISSN	0277-786X
卷号	8193
英文摘要	In this paper a novel 512x8 readout circuit (ROIC) with time delayed integration (TDI) for middle wave (MW) infrared focal plane array (IRFPA) is present. As we known TDI is delicately devised and used in readout circuit to effectively increase the integration time and reduce the photon noise. At the same time, the bucket-brigade device (BBD) structure is commonly used in TDI implementation due to its simplicity and small size in integration. We adopt eight-stage BBD structure to get higher Signal-to-Noise ratio (SNR) and achieve faster image scanning speed for linear IRFPA in the 3 mu m -5 mu m spectral band. Because the center distance between each pixel is 28 mu mx56 mu m, an input stage based on direct injection (DI) which has high injection ratio and small layout area is proved to be suitable in this design. The detector consists of two segments in a staggered format that reads out synchronously. In order to achieve high flexibility, integration time can be controlled and the defective pixels can be de-selection manually. Some other features such as bidirectional operation, integration time, readout mode, an adaptive charge capacity control method and power consumption are also discussed in this article. The novel 512x8 ROIC is fabricated with 0.6 mu m double poly double metal CMOS technology and interconnected with MW IRFPA using indium bump. The experiments show that our method can achieve good performance of integration of MW signal both at room temperature and at 77K low temperature. The power consumption of the circuit is about 30mW at 5V supply and the readout clock frequency is up to 4MHz.
关键词	IRFPA readout circuit TDI bucket-brigade device direct injection
学科领域	Optics; Imaging Science & Photographic Technology
语种	英语
WOS研究方向	Optics ; Imaging Science & Photographic Technology
来源期刊	INTERNATIONAL SYMPOSIUM ON PHOTOELECTRONIC DETECTION AND IMAGING 2011: ADVANCES IN INFRARED IMAGING AND APPLICATIONS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111643
作者单位	Chinese Acad Sci, Key Lab Infrared Imaging Mat & Detectors, Shanghai Inst Tech Phys, Shanghai 200083, Peoples R China
推荐引用方式 GB/T 7714	Zhang Jun-ling,Feng Qi,Chen Hong-lei,et al. A Novel 512x8 ROIC with Time-Delayed-Integration for MW Infrared Focal Plane Array[J]. 中国科学院西北生态环境资源研究院,2011,8193.
APA	Zhang Jun-ling,Feng Qi,Chen Hong-lei,Huang Ai-bo,Ding Rui-jun,&Ni Yun-zhi.(2011).A Novel 512x8 ROIC with Time-Delayed-Integration for MW Infrared Focal Plane Array.INTERNATIONAL SYMPOSIUM ON PHOTOELECTRONIC DETECTION AND IMAGING 2011: ADVANCES IN INFRARED IMAGING AND APPLICATIONS,8193.
MLA	Zhang Jun-ling,et al."A Novel 512x8 ROIC with Time-Delayed-Integration for MW Infrared Focal Plane Array".INTERNATIONAL SYMPOSIUM ON PHOTOELECTRONIC DETECTION AND IMAGING 2011: ADVANCES IN INFRARED IMAGING AND APPLICATIONS 8193(2011).