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ADM2483BRWZ-REEL

ADIADM2483BRWZ-REEL

Analog Devices Inc.
RS422, RS485 Digital Isolator 2500Vrms 3 Channel 500kbps 25kV/µs CMTI 16-SOIC (0.295", 7.50mm Width)
NRND372 in stock
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Overview

The ADM2483BRWZ-REEL is an isolated RS-485 transceiver with integrated iCoupler technology, providing 2500Vrms isolation in a single 16-lead SOIC package. It integrates a 3-channel isolator, a three-state differential line driver, and a differential input receiver into a single component to simplify robust serial bus designs.

Why Choose This Part

This device features a high common-mode transient immunity of 25kV/us, ensuring data integrity in electrically noisy environments. Its slew-rate-limited driver reduces EMI and minimizes reflections caused by improperly terminated cables, while the magnetic coupling technology eliminates the wear-out mechanisms associated with traditional optocouplers.

Applications

Industrial Fieldbus Systems
Used for reliable data transmission in Profibus, Modbus, and other RS-485 based industrial networks.
Process Control
Ideal for connecting PLCs and distributed control systems in environments with high ground potential differences.
Building Automation
Facilitates long-distance communication for HVAC and lighting control systems where electrical isolation is required for safety.

Key Specifications

Type RS422, RS485
Data Rate 500kbps
Technology Magnetic Coupling
Channel Type Bidirectional
Mounting Type Surface Mount
Isolated Power No
Package / Case 16-SOIC (0.295", 7.50mm Width)
Voltage - Supply 3V, 5V
Number of Channels 3
Voltage - Isolation 2500Vrms
Operating Temperature -40degC ~ 85degC
Inputs - Side 1/Side 2 2/1
Rise / Fall Time (Typ) 600ns, 600ns (Max)
Supplier Device Package 16-SOIC
Common Mode Transient Immunity (Min) 25kV/us

Getting Started

To implement this device, provide a 5V supply to the logic side and a separate 5V or 3.3V supply to the bus side to maintain isolation. Ensure that a 0.1uF ceramic decoupling capacitor is placed as close as possible to the VDD1 and VDD2 pins to minimize high-frequency noise.

Also Consider

ISO3082DWR TITexas Instruments - A pin-compatible alternative offering higher data rates up to 20Mbps for high-speed industrial applications.
ADM2587EBRWZ ADIAnalog Devices Inc. - Provides a higher 5000Vrms isolation rating and includes an integrated isolated DC-DC converter for a smaller footprint.