Active inductor and associated amplifying circuit

摘要

An active inductor includes a first transistor, a capacitor, a second transistor, a first resistor, a second resistor, and a bias current source. A source terminal of the first transistor is a first terminal of the active inductor and connected to a first voltage source. The capacitor is connected to the source terminal and gate terminal of the first transistor. A drain terminal of the second transistor is connected to the source terminal of the first transistor. A gate terminal of the second transistor is connected to a drain terminal of the first transistor. The first resistor is connected between the drain terminal of the first transistor and a second terminal of the active inductor. The second resistor is connected to a source terminal of the second transistor. The bias current source is connected between the second resistor and a second voltage source.

主权项

1. An active inductor, comprising:
a first transistor, wherein a source terminal of the first transistor is a first terminal of the active inductor and connected to a first voltage source; a capacitor, wherein a first terminal of the capacitor is connected to the source terminal of the first transistor, and a second terminal of the capacitor is connected to a gate terminal of the first transistor; a second transistor, wherein a drain terminal of the second transistor is connected to the source terminal of the first transistor, and a gate terminal of the second transistor is connected to a drain terminal of the first transistor; a first resistor, wherein a first terminal of the first resistor is connected to the drain terminal of the first transistor, and a second terminal of the first resistor is connected to a second terminal of the active inductor; a second resistor, wherein a first terminal of the second resistor is connected to a source terminal of the second transistor and a second terminal of the second resistor is connected to the gate terminal of the first transistor; and a bias current source, wherein a first terminal of the bias current source is connected to the second terminal of the second resistor, and a second terminal of the bias current source is connected to a second voltage source.