SOLID-STATE IMAGING DEVICE, AND CAMERA SYSTEM USING SAME

    公开(公告)号:US20200036931A1

    公开(公告)日:2020-01-30

    申请号:US16491555

    申请日:2018-02-27

    Abstract: A solid-state imaging device includes an A/D converter per column. The A/D converter performs a first A/D conversion that (i) refines, using a first comparator, a range including a potential of an analog signal to a range of a potential corresponding to a difference between a first potential and a second potential through a binary search, and further (ii) generates, based on a result of the binary search, a first digital signal being a high-order portion of a digital signal. The A/D converter also performs a second A/D conversion that generates, based on a ramp signal and the result of the binary search, a second digital signal being a low-order portion of a remainder of the digital signal, by measuring a time necessary for an output of a second comparator to be inverted.

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