PUSH-PULL POWER AMPLIFIER

原文（中国語）

A push-pull power amplifier (PA) includes a pair of P-type transistors, a pair of N-type transistors, and a splitter, wherein source terminals of the pair of P-type transistors are coupled to a first reference voltage, source terminals of the pair of N-type transistors are coupled to a second reference voltage, and drain terminals of the pair of P-type transistors and the pair of N-type transistors are coupled to an output port. The splitter receives a common-mode input pair, and provides two differential output pairs, wherein one of the two differential output pairs is provided to gate terminals of the pair of P-type transistors, and the other of the two differential output pairs is provided to gate terminals of the pair of N-type transistors. A voltage ripple at each of the gate terminals of the pair of P-type transistors is equal to a voltage ripple of the first reference voltage.