Product Details
Product Description
Product Description
explain
The ADM2582E/ADM2587E is a fully integrated signal and power isolated data transceiver with ± 15 kV ESD protection and is suitable for high-speed communication on multipoint transmission lines. The ADM2582E/ADM2587E includes an integrated DC to DC power supply, eliminating the need for external DC isolation blocks.
They are balanced transmission line designs and comply with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987 (E).
The device integrates analog equipment company, i-coupler ® Three channel isolator, three state differential line driver, differential input receiver and analog device are combined into one package. The device is powered by a single 5V or 3.3V power supply, realizing a fully integrated signal and power isolation RS-485 solution.
The ADM2582E/ADM2587E driver has an active high enable function. Active low receiver enable is also provided, which enables the receiver output to enter a high impedance state when disabled.
The device has current limiting and thermal shutdown functions to prevent output short circuit and bus contention that may lead to excessive power consumption. The components are fully specified in the industrial temperature range and can be packaged in a highly integrated, 20 lead, wide body SOIC.
The ADM2582E/ADM2587E uses high-frequency switching elements to transmit transformers. Special attention must be paid to PCB layout to meet emission standards. For details on board layout considerations, refer to application note AN-0971, Radiation Emission Control Using Equal Power Equipment.
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
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