ADM2491EBRWZ-REEL7

ADM2491E is an isolated data transceiver suitable for high speed, half-or full-duplex communication on multipoint transmission lines. For half-duplex operation, the transmitter outputs and the receiver inputs share the same transmission line. Transmitter output Pin Y is linked externally to receiver input Pin A, and transmitter output Pin Z is linked to receiver input Pin B. The ADM2491E is designed for balanced transmission lines and complies with ANSI TIA/EIA RS-485-A-1998 and ISO 8482: 1987(E). The device employ s Analog Devices, Inc., iCoupler® technology to combine a 3-channel isolator, a three-state differential line driver and a differential input receiver into a single package. Typical application includes isolated RS-485/RS-422 interfaces, industrial field networks, INTERBUS and multipoint data transmission systems.

• Isolated, RS-485/RS-422 transceiver, configurable as half or full-duplex
• ±8KV ESD protection on RS-485 input/output pins
• 16Mbps data rate
• Complies with ANSI TIA/EIA RS-485-A-1998 and ISO 8482: 1987(E)
• Suitable for 5V or 3.3V operation (VDD1)
• High common-mode transient immunity is <gt/>25KV/μs
• Receiver has open-circuit, fail-safe design
• 32 nodes on the bus and thermal shutdown protection
• UL recognition 5000Vrms isolation voltage for 1 minute, per UL 1577
• 16 lead WSOIC package, operating temperature range from -40°C to 85°C

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