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

Claim 6:
7. A semiconductor device comprising:
an amplifier portion;
a conversion portion; and
an input terminal,
wherein the amplifier portion includes a comparison circuit, a first capacitor, a second capacitor, a first switch, a second switch, a third switch, a first wiring, and a second wiring,
wherein the comparison circuit includes an inverting input terminal, a non-inverting input terminal, and an output terminal,
wherein a first signal and a second signal are sequentially supplied to the input terminal,
wherein one terminal of the first capacitor is electrically connected to the input terminal,
wherein the other terminal of the first capacitor is electrically connected to the inverting input terminal,
wherein the second capacitor and the first switch are each electrically connected in parallel with the inverting input terminal and the output terminal,
wherein the first wiring to which a first reference potential is supplied is electrically connected to the non-inverting input terminal through the second switch,
wherein the second wiring to which a second reference potential that is different from the first reference potential is supplied is electrically connected to the non-inverting input terminal through the third switch, and
wherein the conversion portion is configured to convert a potential output from the output terminal into a digital value.