The MOS transistors M17, M18, M19, M20 constitute an active load current mirror, which is of a cascaded type and is used as a load device for the first and second differential pairs. A source of the MOS transistor M19 is coupled to the non-inverting output terminal of the first different...
as an important bridge for economic linkage between cities to promote their economic development, but also promotes the construction of an environment-friendly society with the help of its characteristic advantages in energy saving and emission reduction under the background of high-quality development....