公开(公告)号：US20210067168A1

公开(公告)日：2021-03-04

申请号：US16961565

申请日：2019-01-15

申请人： SONY SEMICONDUCTOR SOLUTIONS CORPORATION

发明人： SHIN KITANO ,  MASAKI SAKAKIBARA ,  HIDEKAZU KIKUCHI ,  MITSUAKI OSAME

IPC分类号： H03M1/56 ,  H04N5/3745

摘要： The present technology relates to a DAC circuit, a solid-state imaging element, and electronic equipment that can be achieved with a small-scale circuit configuration. The DAC circuit includes: a ramp DAC that generates a ramp signal that changes in voltage with a constant time gradient; an injection DAC that outputs a predetermined voltage during a reset period for resetting a comparison target voltage to be compared with the ramp signal; and an adding circuit that adds an output of the ramp DAC and an output of the injection DAC and outputs the outputs to a comparison circuit as a comparison reference voltage. The present technology can be applied to, for example, a DAC circuit of a solid-state imaging element, and the like.