A transmitter of the invention, according to a first aspect, has first and second driving circuits with reverse-current prevention elements connected between output terminals and power supply terminals, and a control circuit which controls the outputs of the first and second driving circuits, the control circuit controlling the first and second driving circuits, during a transition from a first state in which the first and second driving circuits output a first or a second logic level to a second state in which the first and second driving circuits output an intermediate level between the first and second logic levels, to induce a third state in which a through current flows in the first and second driving circuits via the reverse-current prevention elements.