SOLID-STATE IMAGING DEVICE

摘要

According to one embodiment, a solid-state imaging device is provided which comprises a photoelectric conversion element, a floating diffusion, a first capacitor, a first terminal, a second capacitor, a comparator, and a second terminal. The first capacitor is connected at one terminal to the floating diffusion. The first terminal is connected to the other terminal of the first capacitor, and a reference voltage of which the voltage value falls to a predetermined minimum and then rises to a predetermined maximum, is inputted to the first terminal. The second capacitor is connected at one terminal to the floating diffusion. The comparator has the other terminal of the second capacitor connected to its input and compares the potential on the floating diffusion and a threshold. The second terminal is connected to the output of the comparator, and the comparing result of the comparator is outputted via the second terminal.

主权项

1. A solid-state imaging device comprising:
a photoelectric conversion element that converts incident light into signal charge; a floating diffusion that holds the signal charge transferred from the photoelectric conversion element; a first capacitor connected at one terminal to the floating diffusion; a first terminal connected to the other terminal of the first capacitor and to which is inputted a reference voltage of which the voltage value falls to a predetermined minimum and then rises to a predetermined maximum; a second capacitor connected at one terminal to the floating diffusion; a comparator having the other terminal of the second capacitor connected to its input and that compares the potential on the floating diffusion and a threshold; and a second terminal connected to the output of the comparator and via which the comparing result of the comparator is outputted.