The LMC608x incorporate a novel op amp design topology that enables rail to rail output swing even when driving a large load. The topology provides both low output impedance and large gain. Special compensation design techniques are incorporated to maintain stability over a wider range of operating conditions than traditional micropower op amps. These features make the LMC608x both easier to design with, and provide higher speed than products typically found in this ultra-low power class. The LMC608x provide a wide input common-mode voltage range extending to the negative supply. In the presence of large input common-mode voltages, input bias current performance can be degraded. Large common-mode voltages are uncommon in very low leakage designs.