Patent ID: 7459982

Claim:
An amplifier output stage for reducing Electromagnetic Interference (EMI) comprising: an output node; an input node configured to receive a data signal; a first transistor having a base terminal coupled to the input node and having a collector terminal coupled to the output node; a second transistor having a base terminal coupled to an emitter terminal of the first transistor and having a collector terminal coupled to the output node; a third transistor having a collector terminal coupled to the emitter terminal of the first transistor and the base of the second transistor and having an emitter terminal coupled to a current source and to an emitter terminal of the second transistor; and a resistor having a first terminal coupled to a base terminal of the third transistor and a having a second terminal coupled to the emitter terminal of the first transistor, the base terminal of the second transistor and the collector terminal of the third transistor.