Quadruple Differential Line Driver

The SN75ALS172A comprises four line

drivers with 3-state differential outputs. Which are 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 of up to

20Mbaud. Each driver features wide positive and negative common-mode output voltage

ranges, making the driver suitable for party-line applications in noisy

environments.

The SN75ALS172A 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.

The SN75ALS172A is characterized for

operation from 0°C to 70°C.