Adjustable segmented power amplifier

An adjustable, segmented amplifier architecture, comprising:

• a first fixed stage configured to
• amplify an analog signal in accordance with a fixed amplification, and
• provide the analog signal amplified in accordance with the fixed amplification to a first common node;
• an adjustable stage in communication with the first fixed stage, the adjustable stage comprising a plurality of independently selectable parallel amplifier segments, each of the parallel amplifier segments having (i) an input at the first common node and (ii) an output at a second common node, wherein the adjustable stage is configured to
• amplify the analog signal provided to the first common node in accordance with an adjustable amplification that is adjustable depending upon a number of the independently selectable parallel amplifier segments having been selected to amplify the analog signal provided to the first common node, and
• provide the analog signal amplified in accordance with the fixed amplification and amplified in accordance with the adjustable amplification to the second common node;
• and
• a matching network coupled to the first fixed stage and to the adjustable stage, wherein the matching network is configured to receive an output signal in one of a plurality of power ranges corresponding to the selected number of the independently selectable parallel amplifier segments.