ADM2582E 2.5 kV Signal and Power Isolated, ±15 kV ESD Protected, Full/Half Duplex RS-485 Transceiver (16Mbps)

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

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 – VIORM = 560 V peak

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

Interface & Isolation

Isolated RS-485

Building Technology

Heating Ventilation and Air Conditioning
White Goods and Vending
LED General Lighting

Aerospace and Defense

Solutions

IBIS Models

ADM2582E IBIS Model .IBS

Data Sheets

Document	note
ADM2582E/ADM2587E: Signal and Power Isolated RS-485 Transceiver with ±15 kV ESD Protection Data Sheet (Rev. F)	PDF 504.07 K

Application Notes

Document	note
AN-1349: PCB Implementation Guidelines to Minimize Radiated Emissions on the ADM2582E/ADM2587E RS-485/RS-422 Transceivers (Rev. 0)	PDF 396.84 K
AN-1179: Junction Temperature Calculation for Analog Devices RS-485/RS-422, CAN, and LVDS/M-LVDS Transceivers (Rev. A)	PDF 156.87 K
AN-0971: Recommendations for Control of Radiated Emissions with isoPower Devices (Rev. C)	PDF 406 kB
AN-1176: Component Footprints and Symbols in the Binary .Bxl File Format (Rev. 0)	PDF 671 kB

User Guides

Document	note
UG-916: 2-Layer EN55022 Class A Radiated Emissions Compliant Evaluation Board for the ADM2582E/ADM2587E 2.5 kV rms Signal and Power Isolated RS-485 Transceivers with ±15 kV ESD Protection (Rev. 0)	PDF 478.89 K
UG-044: Evaluating the ADM2582E/ADM2587E	PDF 272 kB

Frequently Asked Questions

Document	note

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
ADM2582EBRWZ Production	20 ld SOIC - Wide	OTH 37	-40 to 85C	7.65	6.5	Y
ADM2582EBRWZ-REEL7 Production	20 ld SOIC - Wide	REEL 400	-40 to 85C	0	6.5	Y

Evaluation Boards

Part Number	Description	Price	RoHS
EVAL-ADM2582EEBZ	ADM2582E Populated 6-Layer EN55022 Class B Radiated Emissions Compliant Evaluation Board	75	Y
EVAL-ADM2582EEMIZ	ADM2582E Populated 2-Layer EN55022 Class A Radiated Emissions Compliant Evaluation Board	75	Y