Patent ID: 11962295
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 15:
16. A semiconductor device, comprising:
an analog-to-digital converter configured to convert an analog input signal into a digital output signal;
a multiplexer connected to an input terminal of the analog-to-digital converter and configured to select one of a plurality of analog signals as the analog input signal; and
a plurality of analog circuits configured to output the plurality of analog signals, wherein the multiplexer includes a charging circuit including a capacitor, a plurality of sampling switches, and a plurality of boosting circuits connected between the charging circuit and the plurality of sampling switches,
wherein each of the plurality of sampling switches is connected between an output terminal of one of the plurality of analog circuits and an input terminal of the analog-to-digital converter, and
wherein each of the plurality of boosting circuits includes a first boosting switch connected between an upper node of the capacitor and a gate of one of the plurality of sampling switches, a second boosting switch connected between a lower node of the capacitor and a source of the one of the plurality of sampling switches, and a level shifter configured to control the first boosting switch and the second boosting switch,
wherein a first turn-off voltage input to the first boosting switches connected to the plurality of sampling switches in a pre-charge period in which the plurality of sampling switches are turned off is different from a second turn-off voltage input to the first boosting switches connected to non-selected sampling switches in a boosting period in which the plurality of sampling switches are determined as a selected sampling switch and the non-selected sampling switches and the selected sampling switch is turned on.