MAX3086EESD+

Overview

The MAX3086EESD+ is a full-duplex RS-422/RS-485 transceiver featuring one driver and one receiver. It operates on a single +5V supply (4.75V to 5.25V) with a typical quiescent current of 375µA. The device supports data rates up to 10Mbps with unrestricted slew rates. It includes ±15kV ESD protection on all I/O pins, fail-safe circuitry ensuring a logic-high output when inputs are open or shorted, and a 1/8-unit-load receiver impedance allowing up to 256 devices on the bus. It is housed in a 14-pin SO package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Fail-safe receiver guarantees a logic-high output when inputs are open or shorted
• Enhanced ±15kV electrostatic discharge protection on all transmitter and receiver pins
• High-speed transmission capability up to 10Mbps without slew-rate limiting
• Low-power shutdown mode reduces supply current to approximately 1µA

Applications

• RS-422 and RS-485 communication networks
• Industrial control local area networks
• EMI-sensitive applications requiring high-speed data transmission

Procurement Notes

Verify the specific suffix 'ESD+' indicates the extended temperature range (-40°C to +85°C) and lead-free construction. Confirm the package type matches the required 14-pin Small Outline (SO) footprint for PCB layout compatibility. Ensure the application voltage remains within the specified 4.75V to 5.25V range to maintain electrical characteristics.

Selection Notes

Select this component for full-duplex applications requiring high-speed data transfer up to 10Mbps. Unlike lower-speed variants in the family, the MAX3086E lacks internal slew-rate limiting, making it suitable for shorter cable runs where signal integrity is maintained. Verify that the system requires separate transmit and receive lines rather than half-duplex operation.

Part Context

The MAX3086E belongs to the MAX3080E–MAX3089E series of high-speed transceivers. It shares pinout compatibility with industry-standard parts like the 75180 but adds enhanced ESD protection and fail-safe features. It is designed specifically for full-duplex communication, distinguishing it from half-duplex counterparts such as the MAX3088E within the same product family.

Replacement Considerations

Pin-compatible alternatives include the standard 75180 transceiver, though the MAX3086E offers superior ESD protection and fail-safe functionality. Other family members like the MAX3080E provide similar performance but with reduced data rate limits due to internal slew-rate limiting.