CMOS Image Sensor with Tunable Dynamic Range for Catheter Based Endoluminal Applications

Abstract A custom CMOS image sensor designed for catheter based visible and Near-Infra-Red (NIR) endoluminal applications is presented. The architecture of the integrated pixel is under IP protection and presented for the first time in this contribution. The main characteristics are tunable dynamic range and global shutter capability in a controlled light environment. The imager was electrically and optically characterized. Characterization results show high dynamic range and an improved image response if compared to standard linear pixels, both in the visible and in the NIR ranges, making the sensor suitable for the target application.