ANALOG DEVICES MAX3491EESD+ RS422/RS485 Line Driver/Receiver, 1 Driver, 3V to 3.6V Supply, SOIC-14

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

Warnings

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

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party