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ADM2587EBRWZ-REEL7 DataSheet

ADM2587EBRWZ-REEL7 DataSheet

Part No.
Package Option
−40°C to +85°C
20-Lead SOIC_W
File Size
456 KB
22 Pages
Analog Devices, Inc.
Upload Time
2022-05-20 10:44:43
Update Time
DGT ISO 2.5KV RS422/RS485 20SOIC
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ADM2587EBRWZ-REEL7 Features

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) 
ADM2587E data rate: 500 kbps
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
Operating temperature range: −40°C to +85°C
Highly integrated, 20-lead, wide-body SOIC package

ADM2587EBRWZ-REEL7 Applications

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

ADM2587EBRWZ-REEL7 Description

ADM2587EBRWZ-REEL7 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. ADM2587EBREZ 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.

ADM2587EBRWZ-REEL7 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.

ADM2587EBRWZ-REEL7 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.

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