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US 2024/0244347 A1Published application
Imaging pixel to mitigate cross-talk effects
Assigneeams Sensors Belgium BVBA
InventorsJason INMAN, Kevin FRONCZAK
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Abstract
An imaging pixel to mitigate cross-talk effects comprises a voltage supply node to receive a supply voltage, and an output node to provide a pixel output signal. The imaging pixel further comprises a photosensitive element, and a source follower transistor having a control node coupled to the photosensitive element. The source follower transistor is interposed between the voltage supply node and the output node. The imaging pixel comprises a clamping circuit being interposed between the voltage supply node and the output node.
Claims10
An imaging pixel to mitigate cross-talk effects, comprising:
- a voltage supply node to receive a supply voltage,
- an output node to provide a pixel output signal,
- a photosensitive element,
- a source follower transistor having a control node coupled to the photosensitive element, the source follower transistor being interposed between the voltage supply node and the output node,
- a clamping circuit being interposed between the voltage supply node and the output node,
- a selection transistor to select the imaging pixel for reading out the pixel output signal, the selection transistor being interposed between the source follower transistor and the output node,
- wherein the clamping circuit is interposed between the voltage supply node and an internal node of the imaging pixel, the internal node being located between the source follower transistor and the selection transistor,
- wherein the clamping circuit is formed by a second source follower transistor being interposed between the voltage supply node and the internal node.
5 more elements
2-7. (canceled)
Dependencies are inferred from the claim text.