IMAGE SENSOR INCLUDING ANALOG-TO-DIGITAL CONVERTER AND RAMP VOLTAGE GENERATOR

According to the present disclosure, an image sensor includes a pixel including a floating diffusion (FD) node having a first capacitance in a first mode and a second capacitance that is less than the first capacitance in a second mode, an analog-to-digital converter (ADC) outputting a pixel value b...

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Bibliographic Details
Main Authors PARK, Yu Jin, SEO, Kang Bong, KIM, Soo Hwan, KIM, Min Kyu
Format Patent
LanguageEnglish
Published 27.06.2024
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:According to the present disclosure, an image sensor includes a pixel including a floating diffusion (FD) node having a first capacitance in a first mode and a second capacitance that is less than the first capacitance in a second mode, an analog-to-digital converter (ADC) outputting a pixel value based on a ramp voltage and a pixel voltage output from the pixel, and a ramp voltage generator controlling the ramp voltage based on a difference between a first pixel value output from the ADC in the first mode and a second pixel value output from the ADC in the second mode.
Bibliography:Application Number: US202318340673