Common-source power amplifiers

A system comprising:

• a first amplifier stage configured to amplify an input signal and generate first output signals, wherein the first amplifier stage includes a common-source differential amplifier, wherein the common-source differential amplifier includes a plurality of metal-oxide semiconductor field-effect transistors (MOSFETs) having source terminals connected to a common potential;
• and
• a second amplifier stage including a first differential amplifier and a second differential amplifier configured to respectively generate first and second differential outputs based on the first output signals, wherein each of the first and second differential amplifiers includes a plurality of MOSFETs having source terminals connected to the common potential via a respective balun, wherein the first and second differential amplifiers receive a supply voltage, and wherein the first and second differential outputs of the first and second differential amplifiers have an amplitude greater than twice the supply voltage.