A MOS integrated circuit for driving an analog circuit, e.g. an analog switch, with a low power supply voltage by outputting a control voltage of high signal level exceeding the differential voltage (full scale) between the power supply voltage and the ground voltage, wherein a semiconductor element for blocking reverse current flow is provided in any one of a current path comprising a pMOS transistor formed between a first power supply and the output terminal or a current path comprising an nMOS transistor formed between a second power supply and the output terminal, and a circuit means for shifting the voltage through capacitive coupling is provided at the output terminal.
