DESCRIPTION
The LTM®2881 is a complete galvanically isolated fullduplex RS485/RS422 μModule® transceiver. No external components are required. A single supply powers both sides of the interface through an integrated, isolated, low noise, effi cient 5V output DC/DC converter.

FEATURES
■ Isolator μModule Technology
■ Isolated RS485/RS422 Transceiver: 2500VRMS
■ Integrated Isolated DC/DC Converter: 1W, 62% Efficiency
■ No External Components Required
■ 20Mbps or Low EMI 250kbps Data Rate
■ High ESD: ±15kV HBM on Transceiver Interface
■ High Common Mode Transient Immunity: 30kV/μs
■ Integrated Selectable 120Ω Termination
■ 3.3V (LTM2881-3) or 5.0V (LTM2881-5) Operation
■ 1.62V to 5.5V Logic Supply Pin for Flexible Digital Interface
■ Common Mode Working Voltage: 560VPEAK
■ High Input Impedance Failsafe RS485 Receiver
■ Current Limited Drivers and Thermal Shutdown
■ Compatible with TIA/EIA-485-A Specifi cation
■ High Impedance Output During Internal Fault Condition
■ Low Current Shutdown Mode (< 10μA)
■ General Purpose CMOS Isolated Channel
■ Small, Low Profi le (15mm × 11.25mm × 2.8mm)
   Surface Mount LGA Package

APPLICATIONS
■ Isolated RS485/RS422 Interface
■ Industrial Networks
■ Breaking RS485 Ground Loops