MAX3083EESD+T

Overview

The MAX3083EESD+T is a full-duplex RS-485/RS-422 transceiver featuring one driver and one receiver. It supports data rates up to 500kbps with enhanced slew-rate limiting. The device provides ±15kV ESD protection on all I/O pins and incorporates fail-safe circuitry that guarantees a logic-high receiver output when inputs are open or shorted. It operates from a single +5V supply (4.75V to 5.25V) and draws 375µA typical quiescent current. The component is housed in a 14-pin SO package and functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Enhanced slew-rate limiting facilitates error-free data transmission at speeds up to 500kbps by minimizing EMI and reflections.
• True fail-safe receiver design ensures a logic-high output state when receiver inputs are open, shorted, or disconnected.
• Robust ±15kV electrostatic discharge protection is provided for all RS-485 input and output pins using the Human Body Model.

Applications

• RS-422 and RS-485 communication networks
• Industrial control local area networks
• Level translation applications

Procurement Notes

Verify the specific suffix 'ESD' confirms the extended temperature range (-40°C to +85°C) and 14-pin SOIC packaging. Confirm RoHS compliance status through official manufacturer documentation. Ensure the ordering code matches the required full-duplex configuration without additional programmable features found in other family members.

Selection Notes

Select this component for full-duplex applications requiring reliable performance up to 500kbps. The built-in fail-safe feature is critical for systems where bus disconnection must result in a known high state. Verify that the 500kbps slew rate meets the electromagnetic interference requirements of the target environment compared to faster or slower variants.

Part Context

This device belongs to the MAX3080E–MAX3089E series of high-speed transceivers. It shares pin compatibility with industry-standard parts like the 75180 but includes integrated ESD protection and fail-safe logic. The MAX3083E variant specifically targets half-duplex or full-duplex designs needing moderate speed with reduced signal integrity issues caused by cable reflections.

Replacement Considerations

Pin-compatible alternatives include the MAX3080E and MAX3086E, though these offer different maximum data rates of 115kbps and 10Mbps respectively. Direct functional substitution requires verifying that the specific slew-rate limit of the replacement part aligns with the system's timing and EMI constraints.