Embodiments are directed to a buffer circuit that includes a first circuit and a second circuit. The first and second circuits include sets of transistors along pairs of related signal paths, each of the transistors being driven in response to two related input signals having different but related phases. The first circuit generates a first related output signal in response to one of the pairs of related signal paths and the second circuit generates a second output signal in response to another of the pairs of related signal paths. The first and second circuits provide a linear transfer function across one of the first and one of the second sets of transistors via one of the first pair and second pair of related signal paths.