Electronic Design
3.3 V RS-485/422 Transceivers Fault Tolerant Up To ±18 V

3.3 V RS-485/422 Transceivers Fault Tolerant Up To ±18 V

Ruggedized RS-485/RS-422 transceivers, operating from 3.3 V with 300 μA idle current, withstand direct shorts up to ±18 V and are protected from ESD events exceeding IEC Level 4.

Exar’s XR3070-78X family of ruggedized RS-485/RS-422 transceivers for harsh industrial environments boasts an industry-leading 300 μA idle current while operating from 3.3 V. The analog bus pins can withstand direct shorts up to ±18 V and are protected from ESD events exceeding IEC Level 4. The family of nine devices supports data rates up to 20 Mbps in either full or half duplex configurations, and is intended for use in energy metering, building automation, security systems, process control and other industrial automation applications. The transceivers are 1-driver/1-receiver RS-485/422 devices that operate from a 3.0 V to 3.6 V power supply (3.3 V ±10%) and are fully compliant to the TIA/EIA-485 and TIA/EIA-422 standards. The bus pins feature enhanced ESD protection to ±15 kV, and non-bus pins are protected up to ±4 kV Human Body Model. The XR3070-78X family of RS-485/RS-422 transceivers is available in industry standard 8 NSOIC and 14 NSOIC packages, with a suggested retail price of $1.25 each/1,000.

EXAR CORPORATION

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