| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive and small-sized switching circuit, a switching module and a semiconductor device. SOLUTION: The switching circuit is provided with switching transistors Tr1 and Tr2 composed of an n-type MOSFET or HEMT whose source is connected in common to an input/output terminal T<SB>in</SB>, a control bias supply circuit 10, and a resistor R13 connected in parallel to the control bias supply circuit 10. One end of the connection point of the control bias supply circuit 10 and the resistor R13 is connected to the common connection point Ps of the source. To the other end, a potential for reversely biasing a gate and the source is connected in the case of turning the switching transistors to a cutoff state and a ground potential is connected in the case that at least one of the switching transistors is selected. COPYRIGHT: (C)2006,JPO&NCIPI
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