| 摘要 |
In a photoelectric conversion apparatus, a pixel transistor (M3) and a differential transistor (M5) form a differential pair. A clamp circuit (300) clamps a gate voltage of the differential transistor (M5). An output circuit (105) performs a first operation in which a voltage based on the voltage at the gate of a pixel transistor (M3) is output to the gate of the differential transistor (M5). The output circuit (105) also performs a second operation in which in response to receiving a current from the differential transistor (M5), a signal based on a result of a comparison between the gate voltage of the pixel transistor (M3) and the gate voltage of the differential transistor (M5) is output to the output node (310). In the second operation, a control unit in the output circuit (105) controls a change in the drain voltage of the differential transistor (M5) to be smaller than a change in the voltage at the output node (310). |
