| 主权项 |
1. An imaging apparatus, comprising:
a plurality of pixels arrayed in a matrix, the plurality of pixels each including a photoelectric conversion unit, a charge-voltage converter configured to convert charges into a voltage, a transfer unit configured to transfer the charges from the photoelectric conversion unit to the charge-voltage converter, and an output unit configured to output a signal that is based on an electric potential of the charge-voltage converter; a signal line; a holding unit; a clipping unit; a holding capacitance; and a supply unit connected to a power supply line, wherein the clipping unit includes a clipping transistor for clipping an electric potential of the signal line, one of a source and a drain of the clipping transistor is connected to the signal line, and a reference electric potential is supplied to the other one of the source and the drain of the clipping transistor, the holding capacitance includes a first node connected to a control node of the clipping transistor, and a second node to which a plurality of electric potentials being different in electric potential from one another is supplied from the supply unit, the output unit outputs, to the signal line, a first signal that is based on a reset electric potential of the charge-voltage converter, the holding unit holds the first signal that is output to the signal line, the output unit subsequently outputs, to the signal line, a second signal that is based on the electric potential of the charge-voltage converter to which the charges are transferred from the photoelectric conversion unit, the holding unit holds the second signal that is output to the signal line, an electric potential of the first node is a first electric potential during a period in which the charge-voltage converter is reset, the electric potential of the first node shifts from the first electric potential to a second electric potential during a period from when the holding unit holds the first signal to when the holding unit holds the second signal, and by maintaining causing a path between the second node and the supply unit to be in a non-conductive state during a period from when the electric potential of the first node starts to shift from the first electric potential to the second electric potential to when the holding unit holds the second signal, the second node is maintained being in an electrically-floating state during a period from when the electric potential of the first node starts to shift from the first electric potential to the second electric potential to when the holding unit holds the second signal. |
