GENERAL DESCRIPTION
The ADM3485E is a 3.3 V, low power data transceiver with ±15 kV ESD protection, suitable for half-duplex communication on multipoint bus transmission lines. The ADM3485E is designed for balanced data transmission and complies with TIA/EIA standards RS­485 and RS-422. The ADM3485E is a half-duplex transceiver that shares differential lines and has separate enable inputs for the driver and the receiver.

FEATURES
   TIA/EIA RS-485/RS-422 compliant
   ±15 kV ESD protection on RS-485 input/output pins
   12 Mbps data rate
   Half-duplex transceiver
   Up to 32 nodes on the bus
   Receiver open-circuit, fail-safe design
   Low power shutdown current
   Outputs high-Z when disabled or powered off
   Common-mode input range: −7 V to +12 V
   Thermal shutdown and short-circuit protection
   Industry-standard 75176 pinout
   8-lead narrow SOIC package

APPLICATIONS
   Power/energy metering
   Telecommunications
   EMI-sensitive systems
   Industrial control
   Local area networks