Patent ID: 7126427
Filing Date: 2006-10-24
Classification: H03F,H03K

Abstract:
1. An electronic circuit comprising: a cascode amplifier including an input transistor having first to third terminals, said third terminal of said input transistor controlling a current between said first terminal and said second terminal thereof and receiving an input signal therethrough, and an output transistor having first to third terminals, said third terminal of said output transistor controlling a current between said first terminal and said second terminal thereof, said first terminal of said output transistor being connected to said second terminal of said input transistor, said third terminal of said output transistor being connected to a reference potential through a capacitor, said second terminal of said output transistor outputting an output signal therethrough; and a control circuit including a control transistor having first to third terminals, said third terminal of said control transistor controlling a current between said first terminal and said second terminal thereof and receiving a control signal therethrough, and a diode connected in series to said second terminal of said control transistor and said reference potential, said diode having a first terminal configuring an input terminal of said control circuit and a second terminal connected to said control transistor, said first terminal of said control transistor configuring an output terminal of said control circuit, wherein: said third terminal of said output transistor of said cascode amplifier is connected to said reference potential through said input and output terminal of said control circuit, and said control circuit controls an ON/OFF state of said output transistor.