Multiplying current conveyor for amplifier

The circuit of claim wherein the output of the amplifier is coupled to the gate a third transistor, wherein the drain of the third transistor is coupled to the source of the second transistor, and wherein the output of the amplifier is configured to regulate the source voltage of the second transistor via the third transistor.

A circuit having a first transistor being a common gate connected transistor and a second transistor, the second transistor being M times the size of the first transistor, the first and second transistors having commonly connected gates and commonly connected drains, wherein an apparatus is provided to regulate the source voltage of the second transistor to track the source voltage of the first transistor, wherein the current gain of the circuit is M+1, and wherein the source of the first transistor is connected to receive an input to the circuit.