ADM2582E

2.5 kV Signal and Power Isolated, ±15 kV ESD Protected, Full/Half Duplex RS-485 Transceiver (16Mbps)

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Alternative Parts

ADM2567E

3 kV RMS Signal and Power Isolated RS-485 Transceiver with ±15 kV IEC ESD

ADM2565E

3 kV RMS Signal and Power Isolated RS-485 Transceiver with ±15 kV IEC ESD

Features and Benefits

Isolated RS-485/RS-422 transceiver, configurable as half or full duplex
isoPower^® integrated isolated dc-to-dc converter
±15 kV ESD protection on RS-485 input/output pins
Complies with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E)
Data rate: 16 Mbps
5 V or 3.3 V operation
Connect up to 256 nodes on one bus
Open- and short-circuit, fail-safe receiver inputs
High common-mode transient immunity: >25 kV/µs
Thermal shutdown protection
Safety and regulatory approvals
- UL recognition: 2500 V rms for 1 minute per UL 1577
- VDE Certificates of Conformity
  – DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01
  – V_IORM = 560 V peak
Operating temperature range: −40°C to +85°C
Highly integrated, 20-lead, wide-body SOIC package

Product Details

The ADM2582E/ADM2587E are fully integrated signal and power isolated data transceivers with ±15 kV ESD protection and are suitable for high speed communication on multipoint transmission lines. The ADM2582E/ADM2587E include an integrated isolated dc-to-dc power supply, which eliminates the need for an external dc-to-dc isolation block.

They are designed for balanced transmission lines and comply with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E).

The devices integrate Analog Devices, Inc., iCoupler^® technology to combine a 3-channel isolator, a three-state differential line driver, a differential input receiver, and Analog Devices isoPower dc-to-dc converter into a single package. The devices are powered by a single 5 V or 3.3 V supply, realizing a fully integrated signal and power isolated RS-485 solution.

The ADM2582E/ADM2587E driver has an active high enable. An active low receiver enable is also provided, which causes the receiver output to enter a high impedance state when disabled.

The devices have current limiting and thermal shutdown features to protect against output short circuits and situations where bus contention may cause excessive power dissipation. The parts are fully specified over the industrial temperature range and are available in a highly integrated, 20-lead, wide-body SOIC package.

The ADM2582E/ADM2587E contain isoPower technology that uses high frequency switching elements to transfer power through the transformer. Special care must be taken during printed circuit board (PCB) layout to meet emissions standards. Refer to the AN-0971 Application Note, Control of Radiated Emissions with isoPower Devices, for details on board layout considerations.

Applications

Isolated RS-485/RS-422 interfaces
Industrial field networks
Multipoint data transmission systems

Product Categories

Interface and Isolation
- Isolated RS-485

Markets and Technologies

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Product Lifecycle Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (2)

EVAL-ADM2582E

ADM2582E 4-layer Evaluation Board

EVAL-2LCANRS485

EVAL-2LCANRS485 Evaluation Board

EVAL-ADM2582E

View Detailed Evaluation Kit Information

The ADM2582E power and signal isolated RS-485 transceivers have two options for easy evaluation: the EVAL-ADM2582EEBZ 4-Layer EN55022 Class B Radiated Emissions Compliant Evaluation Board or the EVAL-ADM2582EEMIZ 2-Layer EN55022 Class A Radiated Emissions Compliant Evaluation Board. Both evaluation boards options are populated with an ADM2582E 20-lead wide-body SOIC component.

The EVAL-ADM2582EEBZ evaluation board is designed to reduce emissions generated by the high frequency switching elements used by the isoPower^® technology to transfer power through its transformer. The 4 layer board layout was generated using the guidelines provided in the AN-0971 Application Note, Recommendations for Control of Radiated Emissions with isoPower Devices. The EVAL-ADM2582EEBZ evaluation board was tested at an independent test facility. The evaluation board passed the IEC 61000-4-5 surge testing up to 2 kV.

The EVAL-ADM2582EEMIZ is designed to reduce emissions generated by the high frequency switching elements used by the isoPower^® technology to transfer power through the ADM2582E/ADM2587E integrated transformer. The 2 layer board layout is generated using the guidelines provided in the AN-1349 Application Note, PCB Implementation Guidelines to Minimize Radiated Emissions on the ADM2582E/ADM2587E RS-485/RS-422 Transceivers. The EVAL-ADM2582EEMIZ evaluation boards are tested and certified to pass EN55022 Class A.

Features & Benefits

2.5 kV rms power and signal isolated RS-485/RS-422 transceiver
PCB layout optimized for EN55022 radiated emissions according to the AN-1349 Application Note
ADM2582E passes EN55022 Class A (certification available)
2-layer printed circuit board (PCB) layout that minimizes PCB material cost
Convenient connections for power and signal through screw terminal blocks
Configurable as half-duplex or full-duplex
5 V or 3.3 V operation
Easily configurable through jumper connections
Test points for measuring all signals

Resources

UG-044: 4-Layer EN55022 Class B Radiated Emissions Compliant Evaluation Board for the ADM2582E/ADM2587E 2.5 kV rms Signal and Power Isolated RS-485/RS-422 Transceivers with ±15 kV ESD Protection (Rev. D)

PDF

457.89 K

EVAL-2LCANRS485

View Detailed Evaluation Kit Information

Based on the Analog Devices, Inc., iCoupler^® technology, the ADM3053 and the ADM2582E integrate logic side, signal isolation channels with an Analog Devices isoPower^® dc-to-dc converter to provide regulated, isolated power. The EVAL-2LCANRS485EBZ evaluation board demonstrates best practices for layout on a 2-layer printed circuit board (PCB). This board has been tested according to EN 55032 and has passed Class A limits.

The EVAL-2LCANRS485EBZ, as shipped, is populated with the ADM3053 signal and power isolated transceiver for controller area network (CAN) and the ADM2582E signal and isolated transceiver for RS-485. The EVAL-2LCANRS485EBZ allows access to all of the input and output functions of both transceivers.

While the ADM3053 and the ADM2582E are not directly pin-compatible, the EVAL-2LCANRS485EBZ can be alternately populated with either two ADM3053 devices or two ADM2582E devices.

Full specifications on the ADM3053 and the ADM2582E can be found in the ADM3053 and the ADM2582E data sheets, available from Analog Devices, and must be consulted in conjunction with this user guide when using the EVAL-2LCANRS485EBZ.

Features & Benefits

ADM3053 signal and power isolated CAN transceiver
ADM2582E signal and power isolated full/half duplex RS-485 transceiver
2-layer PCB withlow radiated emissions,passes EN55032 Class A
Independent on-board LDO regulators for 6 V to 9 V supply, providing 5 V to the ADM3053 and ADM2582E supply pins

Screw terminal connectors include
- A 6 V to 9 V external supply input to LDO regulators
- Direct power supply to V_CC pins (ADM2582E)
- Direct power supply tothe V_IO pins (ADM3053and ADM2582E)
- TXD pin, RXD pin, RE_N pin, and DE pin signals
- CAN fieldbus pins, CANH and CANH
- RS-485 fieldbus pins, Y, Z, A, and B
Galvanically isolated CAN and RS-485 fieldbus ports

Resources

UG-1561: EMC Layout Recommendations for Dual Field Bus Ports Using the ADM3053 and the ADM2582E Signal and Power Isolated Transceivers (Rev. 0)

PDF

509.54 K

Documentation & Resources

Data Sheet

ADM2582E/ADM2587E: Signal and Power Isolated RS-485 Transceiver with ±15 kV ESD Protection Data Sheet (Rev. G)
9/1/2009
PDF

Application Note

User Guide

Frequently Asked Question

FAQs
7/26/2017

Safety and Regulatory Compliance

Safety and Regulatory Compliance Information
1/28/2016

Product Selection Guide

Digital Isolation and Interface Technology Selection Guide
2/7/2020
PDF

Solutions Bulletin & Brochure

Simple Steps to EMI Compliance: ADM2582E and ADM2587E Signal and Power Isolated RS–485
1/27/2020
PDF

Technical Article

Video

Protect your Innovations: from High Precision to High Power
8/9/2023
ADM2582E: Signal and Power Isolated RS-485 Transceiver
11/28/2018

Webcast

Solving Isolation Challenges in Power Conversion Applications
10/3/2014
Solving Isolation Challenges in Industrial Automation
10/3/2014

Tools & Simulations

IBIS Model

IBS

ADM2582E IBIS Model

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number	Material Declaration	Reliability Data	Pin/Package Drawing	CAD Symbols, Footprints & 3D Models
ADM2582EBRWZ	Material Declaration	Reliability Data	20-Lead SOIC (Wide)	Ultra Librarian SamacSys
ADM2582EBRWZ-REEL7	Material Declaration	Reliability Data	20-Lead SOIC (Wide)	Ultra Librarian SamacSys
Wafer Fabrication Data

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.