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MAX14853GWE+

ADIMAX14853GWE+

Analog Devices Inc./Maxim Integrated
1/1 Transceiver, Isolated Full RS422, RS485 16-SOIC
Active633 in stock

Overview

The MAX14853GWE+ is an isolated full-duplex RS-485/RS-422 transceiver featuring integrated galvanic isolation to protect communication logic from high-voltage transients. It supports data rates up to 500kbps and operates across a 3V to 5.5V supply range, making it suitable for systems requiring robust signal integrity over long distances. The device combines a single driver and receiver in a 16-pin wide-body SOIC package for space-efficient isolated serial interfacing.

Why Choose This Part

This transceiver offers 2750Vrms of isolation and is rated for operation in harsh temperatures from -40C to 105C. The integrated isolation eliminates the need for bulky external optocouplers, reducing PCB footprint and simplifying BOM management. It also features a 20mV receiver hysteresis to improve noise immunity in differential signaling environments.

Applications

Industrial Automation
Provides reliable serial communication in factory environments with high electrical noise and potential ground loops.
Programmable Logic Controllers (PLCs)
Serves as the isolated physical layer interface for PLC backplanes and fieldbus communication ports.
HVAC Control Systems
Facilitates full-duplex communication between building management controllers and remote sensor nodes over RS-422.
Smart Grid Infrastructure
Ensures isolated data transmission in utility metering and substation monitoring equipment.

Key Specifications

Type Transceiver, Isolated
Duplex Full
Protocol RS422, RS485
Data Rate 500kbps
Mounting Type Surface Mount
Package / Case 16-SOIC (0.295", 7.50mm Width)
Voltage - Supply 3V ~ 5.5V
Receiver Hysteresis 20 mV
Operating Temperature -40degC ~ 105degC
Supplier Device Package 16-SOIC
Number of Drivers/Receivers 1/1

Getting Started

To evaluate this part, designers can use the MAX14853EVKIT evaluation board to test isolation performance and signal integrity. Ensure that bypass capacitors are placed close to both the logic-side and isolated-side VDD pins. Proper PCB layout with clear creepage and clearance distances is essential to maintain the integrity of the galvanic isolation barrier.

MAX14853 Family

Also available as: MAX14853GWE+T