| 摘要 |
PURPOSE: To solve the problem of the mounting area of a printed board increasing, due to the provision of a control terminal at each FET for making a switch operate. CONSTITUTION: A compound semiconductor switching circuit device comprises first and second FETs, a common input terminal commonly connected to source electrodes or drain electrodes of both the FETs, first and second output terminals connected to the source electrodes or drain electrodes of both the FETs, a bias means for applying a prescribed bias to the first output terminal of the first FET, a connecting means for connecting the control terminal to the second output terminal, a ground means for grounding a gate electrode of the second FET, and an isolating means for isolating the common input terminal and the source electrodes or the drain electrodes of the second FET in the manner of direct current. In this device, a control signal is applied to the control terminal connected to the gate electrode of the first FET. |
