Patent ID: 8120428

Claim:
An apparatus comprising: an amplifier circuit comprising: an input node; an output node; a first supply voltage node configured to be electrically coupled to a first voltage source; a second supply voltage node configured to be electrically coupled to a second voltage source; a first transistor of a first polarity, the first transistor having a gate electrically coupled to the input node; a second transistor of a second polarity complementary to the first polarity, the second transistor having a gate electrically coupled to the input node, wherein the first and second transistors are connected in series between the first and second supply voltage nodes via the output node; and a third transistor cascoded with one of the first transistor or the second transistor, wherein the third transistor is electrically coupled and inserted between the one of the first transistor or the second transistor and the output node; wherein the amplifier circuit does not include a transistor cascoded with the other of the first transistor or the second transistor.