MAX3430CSA+T

MAX3430CSA+T is a ±80V fault-protected, fail-safe, 1/4-unit load, +3.3V RS-485 transceiver. This fault-protected RS-485 transceiver features ±80V protection from overvoltage signal faults on communication bus lines. Each device contains one driver and one receiver, and the output pins can withstand faults, with respect to ground, of up to ±80V. Even if the faults occur when the transceiver is active, shut down, or powered off, the device will not be damaged. MAX3430 operates from a 3.3V supply and features a slew-rate-limited driver that minimizes EMI and reduces reflections caused by improperly terminated cables, allowing errorfree data transmission at data rates up to 250kbps. It has1/4-unit-load receiver input impedance allowing up to 128 transceivers on a single bus and features fail-safe circuitry, which guarantees a logic-high receiver output when receiver inputs are open. Applications include RS-422/RS-485 comm, lighting systems, industrial-control local area networks.

• Short-circuit current limiting and thermal-shutdown
• Suitable for Profibus applications and multimaster RS-485 networks
• ±80V fault protection ±12kV ESD protection +3.3V operation
• Internal slew-rate limiting
• 250Kbps data rate
• Allows up to 128 transceivers on the bus
• Common-mode input voltage range from -7V to +12V
• True fail-safe inputs
• Hot-swap input structure on DE
• 0°C to +70°C temperature range, 8 SO package

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party