Patent ID: 7321246

Claim:
A driver circuit comprising: an amplifier circuit for receiving an input signal; first and second transistors of mutually different conductivity types, which are connected serially between two power supply terminals in a form in which sources of said transistors are connected to an output point, for push-pull driving the output point in response to an output signal from said amplifier circuit; a first switch provided in parallel with said first transistor between one of the two power supply terminals and the output point; a second switch provided in parallel with said second transistor between the other of the two power supply terminals and the output point; and a third switch provided in a path that connects an output terminal of said driver circuit and the output point, said third switch being controlled so as to open the path when precharging of the output point is performed and close the path when precharging is not performed; wherein a signal at the output point is fed back to said amplifier circuit.