The AM26LS31CN with RS-422 Interface IC Quad Diff is a highly versatile quad differential line driver manufactured by Texas Instruments. It is designed for use in applications where high voltage digital logic signals must be transmitted over long distances, such as in large computer networks. This IC consists of four differential line driver outputs and can provide up to 3V peak-to-peak outputs with a common-mode voltage of either 3V or 4.5V. It has a communications range of up to 50V and can handle data rates up to 10 Mbps. It has high noise immunity, low cross talk, and high ESD protection, making it a reliable choice for interconnections over large distances.