5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485 Transceiver

The MAX13085E +5.0V, ±15kV ESD-protected, RS-485 transceiver features one driver and one receiver. The device includes fail-safe circuitry, guaranteeing a logic-high receiver output when receiver inputs are open or shorted. The receiver outputs a logic-high if all transmitters on a terminated bus are disabled (high impedance). The MAX13085E includes a hot-swap capability to eliminate false transitions on the bus during power-up or hot insertion.

The MAX13085E features reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission up to 500kbps.

The MAX13085E is ideal for half-duplex communications and it draws 1.2mA of supply current when unloaded or when fully loaded with the drivers disabled. The MAX13085E has a 1/8-unit load receiver input impedance, allowing up to 256 transceivers on the bus.

The MAX13085E is available in an 8-pin SO and PDIP packages.

Applications

* Industrial Control

* Instrumentation

* Lighting Systems

* PROFIBUS

* Security Systems

* Telecom

* Utility Meters

* +5.0V Operation

* Extended ESD Protection for RS-485 I/O Pins ±15kV Human Body Model

* True Fail-Safe Receiver While Maintaining EIA/TIA-485 Compatibility

* Hot-Swap Input Structures on DE and active-low RE

* Enhanced Slew-Rate Limiting Facilitates Error-Free Data Transmission

* Low-Current Shutdown Mode

* Allow Up to 256 Transceivers on the Bus

* Available in Industry-Standard 8-Pin SO and PDIP Packages