Patent ID: 8081245

Claim:
An image sensing apparatus comprising: a pixel array in which a plurality of pixels are arrayed in a row direction and a column direction; a readout unit which reads out a signal from the pixel array; a first terminal which externally receives a first power supply voltage; and a second terminal which externally receives a second power supply voltage, wherein the readout unit includes a column amplification unit which amplifies a signal read out from a pixel on each column of the pixel array, a holding unit which holds the signal amplified by the column amplification unit, a first power supply line which transfers, to the column amplification unit, the first power supply voltage applied from the first terminal, and a second power supply line which transfers, to the holding unit, the second power supply voltage applied from the second terminal, and wherein the column amplification unit includes a first input transistor having a gate electrode and back-gate electrode, the gate electrode receiving a signal read out from a pixel on each column of the pixel array, and the holding unit including a capacitor having a first electrode and a second electrode, the first electrode receiving a signal amplified by the column amplification unit, and wherein the first power supply line transfers the first power supply voltage to the back-gate electrode of the transistor, and the second power supply line transfers the second power supply voltage to the second electrode of the capacitor.