Differential image sensor with high common mode rejection

被引：1

作者：

Innocent, M ^{[1
]}

Meynants, G ^{[1
]}

机构：

[1] Cypress Semicond FillFactory, B-2800 Mechelen, Belgium

来源：

ESSCIRC 2005: PROCEEDINGS OF THE 31ST EUROPEAN SOLID-STATE CIRCUITS CONFERENCE | 2005年

关键词：

D O I：

10.1109/ESSCIR.2005.1541665

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Image processing applications like tracking of moving objects typically involve the subtraction of two successive images. Doing this without the need for a large digital memory requires a sensor chip that does the subtraction in the analog domain. This paper provides insight in the critical issues of the design of such a differential image sensor. The presented sensor has two operation modes: a very low noise correlated double sampling (CDS) mode and a differential image (DI) mode. This sensor is optimized to have a high common mode rejection ratio (CMRR) which results in a small influence from the content of the image onto the differential image.

引用

页码：483 / 486

页数：4

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