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ADM2582E Dataheets PDF



Part Number ADM2582E
Manufacturers Analog Devices
Logo Analog Devices
Description Signal and Power Isolated RS-485 Transceiver
Datasheet ADM2582E DatasheetADM2582E Datasheet (PDF)

Data Sheet Signal and Power Isolated RS-485 Transceiver with ±15 kV ESD Protection ADM2582E/ADM2587E 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) ADM2582E data rate: 16 Mbps 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 in.

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Data Sheet Signal and Power Isolated RS-485 Transceiver with ±15 kV ESD Protection ADM2582E/ADM2587E 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) ADM2582E data rate: 16 Mbps 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 APPLICATIONS Isolated RS-485/RS-422 interfaces Industrial field networks Multipoint data transmission systems FUNCTIONAL BLOCK DIAGRAM VCC VISOOUT isoPower DC-TO-DC CONVERTER OSCILLATOR RECTIFIER REGULATOR VISOIN DIGITAL ISOLATION iCoupler TxD ENCODE DECODE TRANSCEIVER D Y Z DE ENCODE DECODE RxD DECODE ENCODE A R B RE ADM2582E/ADM2587E GND1 ISOLATION BARRIER Figure 1. GND2 08111-001 GENERAL DESCRIPTION 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-todc 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. Rev. G Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2009–2018 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com ADM2582E/ADM2587E TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 4 ADM2582E Timing Specifications ............................................ 5 ADM2587E Timing Specifications ............................................ 5 ADM2582E/ADM2587E Package Characteristics................... 5 ADM2582E/ADM2587E Regulatory Information .................. 6 ADM2582E/ADM2587E Insulation and Safety-Related Specifications ................................................................................ 6 ADM2582E/ADM2587E VDE 0884 Insulation Characteristics .............................................................................. 6 Absolute Maximum Ratings............................................................ 7 ESD Caution...................................................


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