ADM2895E

The ADM2895E/ADM2895E-1 are 5.7k_VRMSsignal and power 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 margin on a 2-layer printed circuit board (PCB) with high-frequency decoupling capacitors and two small external 0402 ferrites on isolated power and ground pins. The device features an integrated, low electromagnetic interference (EMI), isolated DC-to-DC converter, which eliminates the need for an external isolated power supply. The isolation barrier provides immunity to system level electromagnetic compatibility (EMC) standards. The devices are suitable for applications that require reinforced insulation against working voltages of 400V_RMSand 566V_DCfor the lifetime of the device. 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.The ADM2895E/ADM2895E-1 feature overvoltage protection on the RS-485 A and B pins to withstand up to ±60V DC or AC peak to the transceiver side GND2. This allows for robust protection against transients and accidental connection to ±12V or ±24V power supplies. The common-mode range of the device is extended to ±25V for applications with large ground offsets and long cable runs.Please see the data sheet for the full description.