Imaging element and imaging device

摘要

An imaging sensor has a pixel array in which pixels are disposed in a two-dimensional matrix state, a sampling part, a shutter control part, and a clipping circuit. A vertical signal line is coupled to the plurality of pixels disposed in a column direction, and to which a pixel signal is input from the pixels. The sampling part is coupled to the vertical signal line, and to which the pixel signal output to the vertical signal line is input. The clipping circuit is provided at an input side of the sampling part, and clips an electric potential of the vertical signal line to a first clip level before the pixel signal is input from the pixels to the vertical signal line when the shutter control part performs the global shutter operation. As a result, it is possible to stably operate the sampling part.

主权项

1. An imaging sensor, comprising:
a pixel array in which a plurality of pixels are disposed in a two-dimensional matrix state, the pixels each having a photoelectric conversion part generating and accumulating an electric charge by an incident light and a charge-voltage conversion part converting the electric charge transferred from the photoelectric conversion part into a voltage; a vertical signal line coupled to the plurality of pixels disposed in a column direction, and to which a pixel signal is input from the pixels, the pixel signal containing a signal component in accordance with the electric charge generated at the photoelectric conversion part and a noise component acquired when the charge-voltage conversion part is reset; a sampling part coupled to the vertical signal line and to which the pixel signal output to the vertical signal line is input; a shutter control part making the pixel array perform a global shutter operation which simultaneously transfers the electric charge accumulated at the photoelectric conversion part of the pixels at a plurality of rows to each charge-voltage conversion part, and outputting the pixel signal from the pixels to the vertical signal line by each of the rows being selected; and a clipping circuit provided at an input side of the sampling part, and clipping an electric potential of the vertical signal line to a first clip level before the pixel signal is input from the pixels to the vertical signal line when the shutter control part performs the global shutter operation.