Patent ID: 9055245
Filing Date: 2015-06-09
Classification: G01J,H03F,H04N

Abstract:
1. A photodetector comprising: a photoelectric conversion element; a difference data generation circuit comprising a differential amplifier; a data bus; a switch electrically connected to the data bus; a first transistor; a second transistor; a third transistor; a fourth transistor; and a data input selection circuit comprising: wherein one of a source and a drain of the first transistor is electrically connected to the photoelectric conversion element, wherein one of a source and a drain of the second transistor is electrically connected to the photoelectric conversion element, wherein the other of the source and the drain of the first transistor is electrically connected to the other of the source and the drain of the second transistor, wherein the other of the source and the drain of the second transistor is electrically connected to a gate of the third transistor, wherein one of a source and a drain of the third transistor is electrically connected to one of a source and a drain of the fourth transistor, wherein the other of the source and the drain of the fourth transistor is electrically connected to the data bus, wherein one of a source and a drain of the fifth transistor is electrically connected to the data bus, wherein one of a source and a drain of the sixth transistor is electrically connected to the data bus, wherein the other of the source and the drain of the fifth transistor is electrically connected to a first input terminal of the differential amplifier, and wherein the other of the source and the drain of the sixth transistor is electrically connected to a second input terminal of the differential amplifier.