Renesas Electronics Corporation Fault Protected, Extended Common Mode Range, RS-485/RS-422 Transceivers ISL31475EIBZ

The ISL31470E, ISL31472E, ISL31475E, ISL31478E are fault protected, extended common mode range differential transceivers that exceed the RS-485 and RS-422 standards for balanced communication. The RS-485 bus pins (driver outputs and receiver inputs) are protected against overvoltages up to ±60V. Additionally, these transceivers operate in environments with common mode voltages up to ±15V (exceeds the RS-485 requirement), making this RS-485 family one of the more robust on the market.brbr Transmitters deliver an exceptional 2.5V (typical) differential output voltage into the RS-485 specified 54? load. This yields better noise immunity than standard RS-485 ICs, or allows up to six 120? terminations in star topologies.brbr Receiver (Rx) inputs feature a Full Fail-Safe design which ensures a logic high Rx output if Rx inputs are floating, shorted, or on a terminated but undriven (idle) bus. Rx outputs feature high drive levels - typically 15mA @ VsubOL/sub = 1V (to ease the design of opto-coupled isolated interfaces).brbr Half duplex (Rx inputs and Tx outputs multiplexed together) and full duplex pinouts are available. brbr For an RS-485 family with a ±25V extended common mode range, please see the ISL31490E and ISL31480E data sheets.

RS-422/RS-485 Interface IC 8LD OVP 5V RS-485 DUPLX +/-15V CMR 1