The SN75157D is a quad differential line driver IC (integrated circuit) manufactured by Texas Instruments. It is designed to convert TTL (transistor-transistor logic) or CMOS (complementary metal-oxide-semiconductor) logic-level signals into differential output signals using the RS-422 and RS-485 standards.
Here are some of the key features of the SN75157D:
The SN75157D is commonly used in applications that require the transmission of digital signals over long distances, such as in industrial control systems, process control systems, and building automation systems. The RS-422 and RS-485 standards provide high noise immunity and the ability to transmit data over long distances (up to several thousand feet) using differential signaling. The SN75157D's quad differential output capability allows multiple data channels to be transmitted simultaneously over a single transmission line. The SOIC package also makes it easy to use in compact designs. Overall, the SN75157D is a reliable and versatile quad differential line driver IC.
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