| 摘要 |
An amplifier comprises an amplifier stage and an active inductor. The amplifier stage has an input terminal and an output terminal. The active inductor comprises first and second resistors and first and second transistors. The first resistor has a first terminal coupled to the output terminal of the amplifier stage, and a second terminal. The second resistor has a first terminal coupled to the output terminal of the amplifier stage, and a second terminal. The first transistor has a first current electrode coupled to the second terminal of the first resistor, a control electrode coupled to receive a bias voltage, and a second current electrode. The second transistor has a first current electrode coupled to the second current electrode of the first transistor, a control electrode coupled to the second terminal of the second resistor, and a second current electrode coupled to a first power supply voltage terminal.
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