ADM1486ARZ, Интерфейс RS-485

Описание ADM1486ARZ

The ADM1486ARZ is a Differential Line Transceiver suitable for high speed bidirectional data communication on multipoint bus transmission lines. It is designed for balanced data transmission, complies with EIA Standards RS-485 and RS-422 and is recommended for PROFIBUS applications. The part contains a differential line driver and a differential line receiver. Both the driver and the receiver may be enabled independently. When disabled or powered down, the driver outputs are high impedance. The ADM1486 operates from a single 5V power supply. Excessive power dissipation caused by bus contention or output shorting is prevented by short-circuit protection and thermal circuitry. Short-circuit protection circuits limit the maximum output current to ±200mA during fault conditions. A thermal shutdown circuit senses if the die temperature rises above 150°C and forces the driver outputs into a high impedance state under this condition.

• 2.1V Minimum differential output with 54R termination
• Low power 0.8mA ICC
• Thermal shutdown and short-circuit protection
• High impedance outputs with drivers disabled or power-OFF
• Superior upgrade for SN65ALS1176
• 0.5ns Skew driver and receiver
• 11ns Driver propagation delay
• 12ns Receiver propagation delay