nfet current mirrors the extra mirroring of currents will produce more variations in the resulting output currents in these cases the present invention becomes very convenient and desirable because it is largely insensitive to variations in the seed current in addition since only a single seed current is needed for the current mirror the present invention will greatly simplify circuit complexities and has power and silicon area advantages fig3 shows the first embodiment of the present invention using nfet transistors one leg of the current mirror is provided by transistors m 2 and m 1 while the other leg is provided by transistors m 6 and m 5 biasing transistors m 4 and m 3 bias the connected gates of transistors m 2 and m 6 and also of m 1 and m 5 in addition transistors m 4 and m 3 conduct a current i through the transistors with the same current then passing through transistors m 2 and m 1 as illustrated by the dotted line this is the current that is mirrored as current i 0 provided through m 6 and m 5 transistors m 1 m 2 m 3 and m 4 establish the bias for the current mirror transistors m 5 and m 6 the seed current i is fed into the drain of transistor m 4 and subsequently passes through transistors m 3 m 2 and m 1 to vee transistors m 3 and m 4 of sizes w l 3 and w l 4 respectively form a composite transistor m comp of size w l comp.