A differential amplifier circuit including a differential input circuit which receives first and second input signals. The differential input circuit amplifies a potential difference between the input signals and outputs first and second voltage signals representing the potential difference. The first and second voltage signals are connected, respectively, to first and second output transistors. The first and second output transistors are serially connected to each other between a first supply voltage and a second supply voltage. A node between the first and second output transistors provides an output terminal. A control circuit receives the first and second voltage signals and controls the drain current of the first output transistor based on a difference between the first and second voltage signals.