Image sensors having data converters with low noise comparators

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12207009
APP PUB NO 20240171875A1
SERIAL NO

18056755

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Abstract

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An image sensor may include an array of imaging pixels arranged in rows and columns. Each column of pixels can be coupled to a column analog-to-digital converter (ADC) via a pixel output line. The column ADC can include a first low noise single-ended comparison stage, a second low noise single-ended comparison stage, a latch circuit, and a counter. The first low noise single-ended comparison stage may include one or more current source transistors, a voltage ramp generator, a common source amplifier transistor, one or more autozero components, one or more capacitors such as a noise filtering capacitor, and a voltage clamping circuit. The voltage ramp generator can output an increasing voltage ramp or a decreasing voltage ramp.

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Patent Owner(s)

  • SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ramakrishnan, Shankar Bangalore, IN 19 64

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