Patent ID: 6725030
Filing Date: 2004-04-20
Classification: H03F

Abstract:
An integrated circuit chip having an amplifier comprising:a signal input for receiving a radio frequency input signal; a first transistor with a control terminal for controlling the connection between a first terminal and a second terminal of the first transistor, the control terminal communicating with the signal input; a second transistor with a control terminal for controlling the connection between a first terminal and a second terminal of the second transistor, the control terminal to communicating with the signal input, the second terminal of the second transistor communicating with the first terminal of the first transistor; first pull-down connected between the first terminal of the second transistor and ground for reducing the current between the first terminal of the first transistor and ground when the first transistor is closed; first pull-up means connected between the second terminal of the first transistor and a first reference voltage for reducing the current between the second terminal of the second resistor and the first reference voltage when the first transistor is closed; a third transistor with a control terminal for controlling the connection between a first terminal and a second terminal of the third transistor; connection means for conducting AC and DC current between the first terminal of the first transistor, the second terminal of the second transistor, and the control terminal of the third transistor; second pull-up means connected between the first terminal of the third transistor and ground for reducing the current between the first terminal of the third transistor and ground when the third transistor is closed; second pull-down means connected between the second terminal of the third transistor and a second reference voltage for reducing the current between the second terminal of the second transistor and the second reference voltage when the third transistor is closed; and an output terminal connected to the second terminal of the third transistor for providing an amplified radio frequency output signal depending on the radio frequency input signal.