MAX3491EESD+

MAX3491E is a 3.3V powered, ±15KV ESD-protected, 12Mbps, true RS-485/RS-422 communications transceiver. Each device contains one driver and one receiver. All devices feature enhanced electrostatic discharge (ESD) protection. All transmitter outputs and receiver inputs are protected to ±15KV using IEC 1000-4-2 Air-Gap Discharge, ±8KV using IEC 1000-4-2 Contact Discharge, and ±15KV using the human body model. Driver is short-circuit current limited and are protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic-high output if both inputs are open circuit. Application includes telecommunications, industrial-control local area networks, transceivers for EMI-sensitive applications, integrated services digital networks, packet switching.

• 3V to 3.6V supply voltage range, full duplex
• Driver/receiver enable, 2nA shutdown current, ±15KV ESD protection
• ESD protection for RS-485 I/O pins, ±15KV human body model
• Contact discharge, ±8KV IEC 1000-4-2, air-gap discharge, ±15KV IEC 1000-4-2
• Operate from a single +3.3V supply no charge pump required
• Interoperable with +5V logic, pin count is 14
• Common mode input voltage range from -7V to +12V
• Current limiting and thermal shutdown for driver overload protection
• 3V maximum driver common-mode output voltage (RL = 54ohm or 100 ohm, TA = +25°C)
• 14 pin SO package

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Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

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