Patent ID: 8378748

Claim:
A configurable low noise amplifier circuit, the low noise amplifier circuit being configurable between one of: a first topology in which the low noise amplifier circuit comprises a degeneration inductance whereby the low noise amplifier circuit operates as an inductively degenerated low noise amplifier; and a second topology in which the low noise amplifier circuit comprises a feedback resistance whereby the low noise amplifier circuit operates as a resistive feedback low noise amplifier; the configurable low noise amplifier further comprising: a switching arrangement which operatively configures the configurable low noise amplifier circuit between the first topology and the second topology, wherein when the configurable low noise amplifier circuit is operatively configured in the second topology, the switching arrangement provides an electrical by-pass of the degeneration inductance of the first topology, and wherein the configurable low noise amplifier circuit further comprises a first switching transistor, the degeneration inductance being operatively coupled in parallel with the first switching transistor.