MAX3483EESA

Overview

The MAX3483EESA+ is a half-duplex RS-485/RS-422 transceiver operating from a single +3.0V to +3.6V supply. It features one driver and one receiver with slew-rate-limited outputs for data rates up to 250kbps. The device provides ±15kV ESD protection via Human Body Model, ±8kV IEC Contact Discharge, and ±15kV IEC Air-Gap Discharge. It includes a low-power shutdown mode drawing typically 2nA, fail-safe receiver inputs, and thermal shutdown protection. Operating temperature range is -40°C to +85°C in an 8-pin SO package.

Feature Summary

• Slew-rate-limited drivers minimize electromagnetic interference (EMI) and reduce signal reflections on improperly terminated cables.
• Integrated ±15kV ESD protection structures on all I/O pins ensure robustness against electrostatic discharge events.
• Low-power shutdown mode significantly reduces supply current consumption when the device is disabled.
• Fail-safe receiver guarantees a logic-high output state if both differential inputs are left open.

Applications

• Telecommunications systems
• Industrial-control local area networks
• EMI-sensitive communication applications
• Integrated Services Digital Networks (ISDN)
• Packet switching equipment

Procurement Notes

Verify the specific suffix 'ES' indicates the extended temperature range (-40°C to +85°C) and 'EA' denotes the SOIC-8 package. Confirm RoHS compliance status based on the '+' designation. Ensure ordering documentation matches the exact part number to avoid confusion with non-slew-rate-limited variants like the MAX3485E.

Selection Notes

Select this component for half-duplex RS-485 or RS-422 applications requiring data rates up to 250kbps. The slew-rate limitation makes it suitable for long cable runs or environments where minimizing EMI is critical. Verify that the system operates within the specified 3.0V to 3.6V voltage range and requires the -40°C to +85°C industrial temperature rating.

Part Context

This device belongs to the MAX3483E family of 3.3V-powered transceivers manufactured by Analog Devices Inc./Maxim Integrated. It shares the industry-standard 75176 pinout with other members of the series, facilitating drop-in replacements for legacy designs while offering enhanced ESD protection and lower power consumption compared to older generations.

Replacement Considerations

The MAX3485E offers identical pinouts but supports higher data rates up to 12Mbps without slew-rate limiting. The MAX3486E provides intermediate speeds up to 2.5Mbps with partial slew-rate limiting. Full-duplex alternatives include the MAX3488E, MAX3490E, and MAX3491E, which require different circuit configurations due to separate transmit and receive lines.