An ultra-low-noise CMOS image sensor based on an alternative pixel circuit featuring pixel-level voltage amplification is reported. Besides a significant reduction in the contribution of electronic noise generated in column-level circuits, pixel-level voltage amplification achieves sub-electron noise of the pixel-level circuit even without any column-level low-pass filter.
Published in:
Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2011 IEEE International
Date of Conference: 20-24 Feb. 2011