EmbeddedRelated.com
    Parts    RS-485 Transceivers Family    ADM3485    ADM3485EARZ
ADM3485EARZ

ADIADM3485EARZ

Analog Devices Inc.
1/1 Transceiver Half RS422, RS485 8-SOIC
NRND13,654 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The ADM3485EARZ is a low power, differential line transceiver designed for high-speed bidirectional data communication on multipoint bus transmission lines. It operates from a single 3.3V supply and is fully compliant with EIA RS-485 and RS-422 standards at data rates up to 10Mbps.

Why Choose This Part

The device features enhanced ESD protection and a 50mV receiver hysteresis to improve noise immunity in harsh electrical environments. Its 3.3V operation allows for direct interfacing with modern low-voltage microcontrollers without the need for level shifting from 5V rails.

Applications

Industrial Fieldbus Networks
Reliable data transmission in Modbus RTU, Profibus, or BACnet systems over long cable runs.
Building Automation
Interfacing HVAC controllers, lighting systems, and security panels within a distributed network.
Motor Control Feedback
Transmitting high-speed encoder data from motors to central processing units in noisy environments.
Renewable Energy Monitoring
Communication backbone for solar inverter arrays and battery management system monitoring.

Key Specifications

Type Transceiver
Duplex Half
Protocol RS422, RS485
Data Rate 10Mbps
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Voltage - Supply 3V ~ 3.6V
Receiver Hysteresis 50 mV
Operating Temperature -40degC ~ 85degC
Supplier Device Package 8-SOIC
Number of Drivers/Receivers 1/1

Getting Started

When prototyping, ensure a 120-ohm termination resistor is placed at both ends of the bus to prevent signal reflections. Connect the DE (Driver Enable) and RE (Receiver Enable) pins to a GPIO to manage the half-duplex direction switching required for RS-485 communication.

Part of RS-485 Transceivers family » ADM3485

ADM3485 Family

Part NumberDifferenceStock
ADM3485ARZ (Analog Devices) ARZ 12,764
Also available as: ADM3485

Also Consider

SN65HVD3082EDR TITexas Instruments - A robust alternative optimized for low power consumption in half-duplex RS-485 applications.