IC design for a digital wireless endoscope capsule system

The requirement of an IC for a biomedical application is introduced. An analog-digital mixed-mode IC for a digital wireless endoscope capsule is designed using the CMOS process. The presented system has some characterized features, such as real time endoscopy image monitoring, adjustment of the view angle and focus, 3-dimensional range image acquisition, and controllability of capsule movement. The architecture, specification and characteristics of the IC are demonstrated.