WORKSHOP PAPER
Comparison of Several Ramp Generator Designs For Column-Parallel Single Slope ADCs
Abstract
Many CMOS image sensors now use column-parallel readout structure with single slope ADCs. Ramp generator in the ADCs is a critical building block since the performance of the ADCs depends a lot on the accuracy of the ramp signal. In this paper, we present several ramp generator architectures and compare their performance in terms of resolution, area, noise and reliability.Keywords
CMOS image sensors, Ramp generator, Single slope ADCs,References
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