Patent ID: 7764123

Claim:
An amplifier circuit, comprising: first and second source follower circuits supplied with an input voltage; a first output transistor including a control terminal that receives an output of the first source follower circuit, and a first terminal, which is supplied with a power supply voltage; a second output transistor including a control terminal that receives an output of the second source follower circuit, and a first terminal, which is supplied with a base voltage; a first auxiliary transistor including a second terminal, which is connected to an output terminal of the first source follower circuit, and a control terminal, which receives a first bias voltage; a second auxiliary transistor including a second terminal, which is connected to an output terminal of the second source follower circuit, and a control terminal, which receives a second bias voltage; and an output means for outputting a voltage at a connection node of second terminals of the first and second output transistors and first terminals of the first and second auxiliary transistors.