Modern Adcs Improve Cmos Image Sensors

摘要

Ic designers have improved the adcs inside comos sensors,whichrnMust capture frames quickly enough for high-definition video.rnWith this constraint in mind,designers must weigh the benefitsrnOf adc architectures and make trade-offs in speed and size.rnThe last two years have seen many important developments in CMOS image sensors using a variety of architectures that employ different methods to achieve similar goals. The ADCs that the image sensors employ are keys to these architectures, with manufacturers employing one of two major approaches: pipelined or column techniques.