Analog Devices LTM2881IY-5

Single Transmitter/Receiver RS-422/RS-485 32-Pin BGA Tray

MS-uModule, Complete Isolated RS485/RS422 uModule Transceiver + Power

Line Transceiver, 2 Func, 2 Driver, 2 Rcvr, Hybrid

DGTL ISO 2.5KV RS422/RS485 32BGA

BGA32 COMPLETE ISO RS485/RS422

The LTM2881 is a complete galvanically isolated full-duplex RS485/RS422 μModule® (micromodule) transceiver. No external components are required. A single supply powers both sides of the interface through an integrated, isolated, low noise, efficient 5V output DC/DC converter. Coupled inductors and an isolation power transformer provide 2500VRMS of isolation between the line transceiver and the logic interface. This device is ideal for systems where the ground loop is broken allowing for large common mode voltage variation. Uninterrupted communication is guaranteed for common mode transients greater than 30kV/μs. Maximum data rates are 20Mbps or 250kbps in slew limited mode. Transmit data, DI and receive data, RO, are implemented with event driven low jitter processing. The receiver has a one-eighth unit load supporting up to 256 nodes per bus. A logic supply pin allows easy interfacing with different logic levels from 1.62V to 5.5V, independent of the main supply. Enhanced ESD protection allows this part to withstand up to ±15kV (human body model) on the transceiver interface pins to isolated supplies and ±10kV through the isolation barrier to logic supplies without latch-up or damage. Applications Isolated RS485/RS422 Interface Industrial Networks Breaking RS485 Ground Loops Isolated PROFIBUS-DP Networks