the following example is for you reference.
ADM2582EBRWZ  ADI
(NEW and ORIGONAL)
(2.5 kV Signal and Power Isolated, Full/Half Duplex RS-485 Transceiver (16Mbps))

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)
• 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

 

 

Technical details:
 the ADM2582E/ 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,
   

 

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