ADM3095EARZ

ADM3095EARZ is a 3.0 V to 5.5 V, 2.5 Mbps, half-duplex RS-485 transceiver from Analog Devices in a 16-lead SOIC package, built for industrial fieldbus ports that face real-world wiring faults and transients. Its headline feature is certified Level 4 EMC protection integrated on the RS-485 bus pins — IEC 61000-4-5 surge protection to ±4 kV, IEC 61000-4-4 EFT protection to ±2 kV, and IEC 61000-4-2 ESD protection to ±8 kV contact / ±15 kV air-gap discharge — so a compliant port needs no external TVS or surge-suppression parts, saving BOM cost, board space and a round of EMC certification risk. The bus pins also tolerate ±42 V ac/dc peak fault voltages, surviving short circuits directly to power supplies and ±24 V ac supplies connected in error, and the receiver is truly fail-safe: bus idle, open-circuit and short-circuit conditions all produce a logic-high output across the full ±25 V receiver common-mode input range, so a silent or disconnected bus can never masquerade as valid data. Selection advice: the EARZ suffix is the -40°C to +85°C grade — choose the EBRZ grade instead if the port must operate to +125°C, and match the full ordering code, since the two grades are otherwise identical. This is a non-isolated transceiver: if the application requires galvanic isolation between the bus and the controller, the isolated sibling ADM2795E is the correct pick, not this part. Its 2.5 Mbps ceiling suits Modbus RTU, PROFIBUS and similar fieldbus links; for faster links, step up to a higher-rate member of the ADM30xx family rather than overclocking this one.