DS3487M Quad TRI-STATE RS-422 Line Driver For Shared Buses

DS3487M is used to push differential data over twisted-pair where single-ended logic is too noisy or too distance-limited. Typical applications include industrial controllers, rack backplanes, and instrument interfaces that need predictable signal levels across longer runs. DS3487M integrates four independent differential drivers and gives you TRI-STATE output control to support multidrop topologies or board-level isolation during fault handling. TTL-compatible inputs simplify connection to common logic families, and the fast driver architecture helps preserve timing margins as system speed increases. For cleaner EMC behavior, keep the differential pairs length-matched and provide a solid return path near the transceiver. Request a quote for DS3487M.