Patent ID: 7619476

Claim:
An amplifier biasing stage, comprising: a first transistor configured to provide a temperature compensated biasing signal for a complementary pair of field-effect transistors included in an output stage of an amplifier; a first resistive element connected to an emitter of the first transistor; a second resistive element connected to a base of the first transistor; and a third resistive element connected to a collector of the first transistor, wherein the first, second and third resistors are coupled to complementary pair of field effect transistors and wherein the respective resistances of the first, second and third resistive elements are selected to substantially match a voltage provided by the amplifier biasing stage to a gate-to-source voltage of the complementary pair of field-effect transistors and to substantially match a temperature coefficient of the amplifier biasing stage to a temperature coefficient of the complimentary pair of field-effect transistors.