Noise Reduction Effects of Column-Parallel Correlated Multiple Sampling and Source-Follower Driving Current Switching for CMOS Image Sensors
Year: 2024
Type: conference-paper
Abstract: Noise reduction effects of column-parallel correlated multiple-sampling (CMS) for CMOS image sensors are investigated. In the CMS, the gain of the noise cancelling can be flexibly changed by the sampling number. It has a similar effect to that of amplified CDS for thermal noise but is more effective for 1/f and random telegraph signal (RTS) noises. The effect has been investigated with an implementation of a 1Mpixel pinned photodiode CMOS imager. A driving current switching of pixel source followers is also tested to further reduce the RTS-like noise using the CMS.
Source: IISS online library
DOI: 10.60928/xx3d-46oc
Authors: Shoji Kawahito, Sungho Suh, Takuma Shirei, Shinya Itoh, Satoshi Aoyama
Language: English
Topic: CCD and CMOS Imaging Sensors
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W6958801112