Title :
Random Telegraph Signal in CMOS Image Sensor Pixels
Author :
Wang, Xinyang ; Rao, Padmakumar R. ; Mierop, Adri ; Theuwissen, Albert J P
Author_Institution :
Delft Univ. of Technol.
Abstract :
In this work, the 1/f noise of the source follower (SF) in pinned-photodiode CMOS pixels is characterized. It is found that the 1/f noise in these pixels is actually due to a very limited number of traps and results in a random telegraph signal (RTS). It is pointed out how the correlated-double sampling (CDS) reacts on this RTS. The temperature dependency of the imager read noise revealed two mechanisms of RTS during CDS
Keywords :
1/f noise; CMOS image sensors; photodiodes; 1/f noise; CMOS image sensor pixels; correlated-double sampling; imager read noise; random telegraph signal; CMOS image sensors; Circuit noise; Computational Intelligence Society; Histograms; Image sampling; Noise cancellation; Noise figure; Noise level; Pixel; Telegraphy;
Conference_Titel :
Electron Devices Meeting, 2006. IEDM '06. International
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0438-X
Electronic_ISBN :
1-4244-0439-8
DOI :
10.1109/IEDM.2006.346973
