Patent ID: 8742849

Claim:
A linear source follower amplifier comprising: a first metal-oxide semiconductor (MOS) field effect transistor (FET) selected from a group consisting of NMOS and PMOS, having a gate to accept an ac input signal, a drain, and a source to supply an ac output signal; a second MOS FET selected from the group having a gate to accept the ac input signal, a source connected to the drain the first MOS FET, and a drain; a third MOS FET selected from the group, having a drain connected to the source of the first MOS FET, a gate connected to the drain of the second MOS FET, and a source connected to a first reference voltage; a fourth MOS FET selected from the group, having a drain and a gate connected to the drain of the second MOS FET, and a source connected to the first reference voltage; and, a current source having an input connected to a second reference voltage, and an output connected to the drain of the first MOS FET.