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ADM485AR

ADM485AR

Analog Devices
Industry-standard RS-485 transceiver in an SO-8 package suitable for many multi-drop and industrial communication applications.
Active13,160 in stock
Datasheet Digi-Key Compare Prices

Overview

The ADM485AR is a robust, half-duplex RS-485 transceiver designed for reliable multi-drop communication in industrial environments. It supports data rates up to 5 Mbps and operates from a single 5V supply, making it suitable for a wide range of data transmission applications.

Why Choose This Part

This transceiver offers a strong balance of performance and reliability, featuring a 5 Mbps data rate and 70 mV receiver hysteresis for enhanced noise immunity. Its low quiescent current in run mode (2.2mA) and sleep mode (600uA) is beneficial for power-conscious designs. The wide input voltage range of -7V to +12V on the RS-485 bus pins provides robust protection against transient voltages.

Applications

Low Power RS-485 Systems
Its 2.2mA run current and 600uA sleep current make it ideal for power-sensitive RS-485 networks.
Industrial Automation
The -40C to +85C operating temperature range and robust electrical characteristics support use in demanding industrial control systems.
DTE/DCE Interface
Facilitates reliable communication between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) over RS-485/RS-422.
Packet Switching and LANs
Applicable in local area networks and packet switching systems requiring differential data transmission for noise immunity.
Data Concentration and Multiplexers
Suitable for aggregating data from multiple sources or multiplexing data streams over a shared bus.
Integrated Services Digital Network (ISDN)
Can be used in ISDN applications where differential signaling is employed for robust data links.

Key Specifications

Type Transceiver
Duplex Half
Protocol RS422, RS485
Data Rate 5Mbps
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Voltage - Supply 4.75V ~ 5.25V
Receiver Hysteresis 70 mV
Operating Temperature -40degC ~ 85degC
Supplier Device Package 8-SOIC
Number of Drivers/Receivers 1/1

Getting Started

To get started with the ADM485AR, integrate it into your existing RS-485 or RS-422 bus design. Standard development boards often include similar transceivers, allowing for quick prototyping of bus communication protocols. Ensure proper termination resistors are used on the bus for optimal signal integrity.

ADM485 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Data Rate Stock
ADM485AR (this part) 5M 13,160
ADM485EAR 2.5M 7,099
Also available as: ADM485
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