Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers

The MAX481, MAX483, MAX485, MAX487–MAX491, and MAX1487 are low-power transceivers for RS-485 and RS-422 communication. Each part contains one driver and one receiver.

Applications

* Industrial-Control Local Area Networks * Level Translators * Low-Power RS-422 Transceivers * Low-Power RS-485 Transceivers * Transceivers for EMI-Sensitive Applications

* Low Power Consumption Minimizes Thermal Dissipation, Reducing System Cost

* 120µA to 500µA Quiescent Current

* Shutdown Current of 0.1µA

* Single 5V Supply Voltage

* Slew-Rate-Limited Drivers (MAX483/MAX487/MAX488 and MAX489)

* Up to 250kbps Data Rate

* Unlimited Drivers: Up to 2.5Mbps Data Rate

* Integrated Protection Enhances System Robustness

* Short Circuit Current Limited Driver

* Integrated Thermal Shutdown

* Receiver Fail-Safe for Input Open Circuit

* Guarantees Logic High

* 1/4 Unit Loading (MAX487/ MAX1487 only) Allows Up to 128 Devices on a Single Bus

* 48kΩ Receiver Input Resistance