To prevent an output charge amount from being affected by clock jitter by outputting a predetermined correct amount of charge to the input of one clock signal.

A current mirror circuit includes transistors M1 and M2, a switch SW1 is turned on after turning off a switch SW2 from a state where the switch SW1 is turned off and the switch SW2 is turned on, and charge corresponding to charge to be charged to a capacitor C1 is output from the transistor M2. A term when the switch SW1 is turned on and the switch SW2 is turned off is controlled so as to be longer than a time when voltage of both ends of the capacitor C1 is charged to voltage obtained by subtracting threshold voltage of the transistor M1 from a potential difference between VDD and GND.