Semiconductor device

A semiconductor device comprising:

• a first path including a first analog input terminal, a first analog input switch, a first amplifier circuit, a first control switch;
• a second path including a second analog input terminal, a second analog input switch, a second amplifier circuit, a second control switch;
• a third path including a third analog input terminal, a third analog input switch, a third amplifier circuit, a third control switch;
• a fourth path including a fourth analog input terminal, a fourth analog input switch, a fourth amplifier circuit, a fourth control switch;
• a sample-and-hold circuit including an input terminal coupled to the first to fourth control switch and an output terminal;
• a comparison circuit coupled to the output terminal of the sample-and-hold circuit;
• an analog-to-digital converter coupled to the comparison circuit;
• a control circuit that generates a first to fourth control signal, and a fifth to eighth control signal for controlling on and off states of the first to fourth control switch;
• and
• a signal conversion circuit that generates a ninth to twelfth control signal for controlling on and off states of the first to fourth analog input switch based on the first to fourth control signal,
• wherein a period of an activation level of the ninth to twelfth control signal is longer compared to a period of an activation level of the first to fourth control signal,
• wherein the fifth to eighth control signal is temporarily activated at the beginning of the period of the activation level of the first to fourth control signal, and turn on the first to fourth control switch,
• wherein the first to fourth analog input switch is turned on during the activation level of the ninth to twelfth control signal,
• wherein an on state period of the first to fourth analog input switch overlaps.