Photoelectric conversion device and operation method for photoelectric conversion device

摘要

A photoelectric conversion unit generates an amount of charges. A differential amplifier has first and second input transistors and is configured to output a current signal based on the amount of charges. A reset voltage providing unit is configured to provide a reset voltage for input nodes of the first and second input transistors. A transfer transistor is electrically connected to, and configured to transfer a charge to, the input node of the first input transistor. A reset transistor is electrically connected to one of the input nodes, and configured to control an electrical connection between the reset voltage providing unit and the input node connected to the reset transistor. A connection transistor has first and second nodes and is configured to control an electrical connection between the input nodes. The first and second nodes are connected to the input nodes of the first and second input transistors, respectively.

主权项

1. A photoelectric conversion device comprising:
a photoelectric conversion unit; a differential amplifier configured to output a current signal based on an amount of charges generated by the photoelectric conversion unit, wherein the differential amplifier includes a first input transistor and a second input transistor forming a differential pair; a transfer transistor directly connected to a gate of the first input transistor, and configured to transfer a charge generated by the photoelectric conversion unit to the gate of the first input transistor; a reset voltage providing unit configured to provide a reset voltage for the gate of the first input transistor and a gate of the second input transistor; a reset transistor electrically connected to either one of the gate of the first input transistor or the gate of the second input transistor, and configured to control an electrical connection between the reset voltage providing unit and the gate connected to the reset transistor; and a connection transistor configured to control an electrical connection between the gate of the first input transistor and the gate of the second input transistor, wherein a source of the connection transistor is directly connected to the gate of the first input transistor, and a drain of the connection transistor is directly connected to the gate of the second input transistor.