SOLID STATE IMAGING DEVICE AND IMAGING SYSTEM

摘要

A solid state imaging device includes a pixel unit; a signal line; a readout circuit that outputs, to the signal line, a first signal corresponding to a state where the pixel is reset and a second signal based on charges generated by photoelectric conversion in the photoelectric conversion element; a signal output circuit including an amplifier and a clamp capacitor, wherein a first terminal of the clamp capacitor is connected to the signal line and a second terminal of the clamp capacitor is connected to an input terminal of the amplifier; a correction circuit that outputs a correction signal that is based on a difference between an output signal of the amplifier and a reference signal; and a holding circuit configured to hold the correction signal and apply the correction signal to the input terminal of the amplifier when the first signal is output to the signal line.

主权项

1. A solid state imaging device comprising:
a pixel unit including a plurality of pixels arranged in a matrix, wherein each of the pixels includes a photoelectric conversion element; a signal line; a readout circuit that outputs, to the signal line, a first signal corresponding to a state where the pixel is reset and a second signal based on charges generated by photoelectric conversion in the photoelectric conversion element; a signal output circuit including an amplifier and a clamp capacitor, wherein a first terminal of the clamp capacitor is connected to the signal line and a second terminal of the clamp capacitor is connected to an input terminal of the amplifier; a correction circuit that generates a correction signal based on a difference between an output signal of the amplifier and a reference signal; and a holding circuit that holds the correction signal and applies the correction signal to the input terminal of the amplifier when the first signal is output to the signal line.