Quadruple Differential Line Driver

The SN75174 is a monolithic quadruple

differential line driver with 3-state outputs. It is designed to meet the

requirements of ANSI Standards EIA/TIA-422-B and RS-485 and ITU Recommendation V.11.

The device is optimized for balanced multipoint bus transmission at rates up to 4

megabaud. Each driver features wide positive and negative common-mode output voltage

ranges making it suitable for party-line applications in noisy environments.

The SN75174 provides positive- and

negative-current limiting and thermal shutdown for protection from line fault

conditions on the transmission bus line. Shutdown occurs at a junction temperature

of approximately 150°C. This device offers optimum performance when used with the

SN75173 or SN75175 quadruple differential line receivers.

The SN75174 is characterized for

operation from 0°C to 70°C.