Patent ID: 6329864
Filing Date: 2001-12-11
Classification: H03D

Abstract:
Semiconductor circuitry comprising:a transistor pair that consists of a first transistor having a base electrode to which a first signal is applied, and a second transistor having a base electrode to which a signal having a phase opposite to that of the first signal is applied, emitter electrodes of said first and second transistors being connected to each other and collector electrodes of said first and second transistors being connected to each other;a third transistor having a base electrode to which a second signal is applied, an emitter electrode connected to a first fixed voltage level, and a collector electrode connected to a common emitter of said transistor pair; andan output circuit for connecting a common collector of said transistor pair to a second fixed voltage level by way of an output load, and for furnishing a third signal from the common collector of said transistor pair.