EMC certification eliminates the need for external surge suppression devices
Insulation protection prevents overvoltage, static discharge, and wiring errors

Analog Devices has launched the industry's first RS-485 transceiver that is fully certified for EMC Level 4 overvoltage protection, eliminating the need for a separate external Transient Voltage Surge Suppressor (TVSS).

Analog Devices' ADM2795E galvanic isolator based on iCoupler magnetic isolation technology and the non-isolated ADM3095E reduce space requirements, component count, time to market, and minimize regulatory compliance issues, the company said.

The integrated isolation protection provided by the device prevents failures, overvoltage, electrostatic discharge (ESD), wiring errors, etc. that can cause damage to the communication interface due to harmful voltage inflow.

The RS-485 transceivers simplify the bill of materials (BOM) and reduce board footprint for high-density RS-485 ports. The ADM2795E and ADM3095E RS-485 transceivers meet the IEC61000-4-5 Level 4 overvoltage protection requirements, as well as industrial IEC immunity standards (radiated, conducted, and magnetic immunity) and EMC protection requirements for electrostatic discharge (ESD), electrical fast transients (EFT), and overvoltage.

Both devices are TIA/EIA RS-485/RS-422 compliant over the full supply voltage range of 3V to 5.5V. Evaluation boards, IBIS models, safety and regulatory compliance certifications, videos, and application notes for RS-485 transceivers are available, simplifying the process of addressing the needs of manufacturers and users from the design stage.