Patent ID: 8004365
Filing Date: 2011-08-23
Classification: H03F

Abstract:
1. A circuit arrangement of a low-noise linear input amplifier, comprising: a parallel circuit of a common-base circuit having a pair of common-base circuit transistors with intercoupled bases; and a common-emitter circuit having a pair of common-emitter circuit transistors, in which the emitters of the common-emitter circuit transistors are interlinked, and wherein the respective collectors of the common-base circuit transistors and of the common-emitter circuit transistors are interconnected in parallel with an output and a source voltage is interlinked with the emitters of the common-base circuit transistors and with the bases of the common-emitter circuit transistors, wherein a linearization of the output current at the output as a function of the source voltage, is achieved by a linearization of the transfer function of the common-emitter circuit transistors and of the common-base circuit transistors.