Architecture of CMOS Image Sensors

Mono Cmos Sensor Read Out Diagram

In addition to the basic concept of active pixels, a number of common features can be found in most CMOS-based imagers. As shown in Fig. 2, two different scanners surround the actual pixel array a vertical scanner to control the row selection, and a horizontal scanner to amplify and multiplex the analog pixel signals. While most CMOS imagers include comparable vertical scanners, they differ quite substantially in the architecture of the horizontal scanner. Low-speed astronomy detectors...