Patent ID: 11882374
Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A semiconductor device comprising:
an amplifier portion; and
a conversion portion,
wherein the amplifier portion includes a comparison circuit,
wherein a first signal and a second signal are sequentially input to the amplifier portion,
wherein a first reference potential is supplied to the comparison circuit in a period during which the first signal is input,
wherein a second reference potential is supplied to the comparison circuit in a period during which the second signal is input,
wherein the amplifier portion is configured to output, to the conversion portion, an output potential that is obtained by amplifying a difference between potentials of the first signal and the second signal in a period during which the second signal is input, and
wherein the conversion portion is configured to convert the output potential into a digital value.