Semiconductor device and operating method of semiconductor device

A semiconductor device, comprising:

• a switching circuit comprising one or more switches which operate depending on a communication mode comprising a first communication mode and a second communication mode;
• and
• a digital signal generation circuit configured to receive an input of an analog signal, generate a digital signal using a first type analog-to-digital converter (ADC) if the one or more switches are in a first condition, and generate a digital signal using a second type ADC if the one or more switches are in a second condition which is different from the first condition,
• wherein a circuit configuration of the digital signal generation circuit comprises a first circuit configuration configured to generate the digital signal in the first communication mode, and a second circuit configuration configured to generate the digital signal in the second communication mode, and
• when conditions of the one or more switches are changed, the first circuit configuration and the second circuit configuration are changed to each other, and
• wherein the second type ADC utilizes an operational amplifier (OP AMP) of the digital signal generation circuit that is used to generate the analog signal.