| 摘要 |
A differential amplifier circuit includes 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 at first and second output terminals representing the amplified potential difference. A first output transistor is connected between a high potential power supply and a third output terminal of the differential input circuit. The first output transistor pulls up the potential at the third output terminal. A second output transistor is connected between the third output terminal and a low potential power supply for pulling down the potential at the third output terminal. A gate voltage controller is connected to the first and second output terminals and receives the first and second voltage signals and controls voltages applied to each of the gate terminals of the first and second output transistors to control the currents flowing to them.
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