ADM2495E/ADM2495E-1 RS-485 Transceivers
Analog Devices ADM2495E/ADM2495E-1 Half-Duplex RS-485 Transceivers are 5.7kVRMS, signal-isolated RS-485 transceivers with ±60V fault protection on the RS-485 A and B pins. These devices are designed for balanced transmission lines and comply with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E). The devices can pass radiated emissions testing to the EN 55032 Class B standard with a margin on a 2-layer printed circuit board (PCB) with high-frequency decoupling capacitors. The isolation barrier provides robust system-level immunity to IEC 61000-4-x system-level electromagnetic compatibility (EMC) standards. The devices are suitable for applications that require reinforced insulation against working voltages of 1060VRMS and 1500VDC for the device's lifetime. The devices are protected against ±4kV contact IEC 61000-4-2 and ±15kV human body model (HBM) electrostatic discharge (ESD) events on the RS-485 A and B pins and ±8kV contact IEC 61000-4-2 ESD across the barrier without latch-up or damage.
