CPC A61B 5/02427 (2013.01) [H01L 27/14 (2013.01); H04N 25/00 (2023.01)] | 16 Claims |
1. A photoplethysmography (PPG) sensing device, the device comprising:
a pulsed light source,
at least one pixel for light-to-charge conversion to create photo-generated electrons, comprising:
a pinned photodiode including a well,
a sense node, and
a transfer gate having its source electronically connected to one electronic connection node of the pinned photodiode, and being configured to act as a transfer gate between the pinned photodiode and the sense node to transfer at least part of any integrated photo-generated electrons to the sense node for a read-out, with a grid of the transfer gate being connected to a DC power source.
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