MAX3081ECSA+T

Overview

The MAX3081ECSA+T is a full-duplex RS-422/RS-485 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +5V supply (4.75V to 5.25V) and supports data rates up to 115kbps with slew-rate-limited drivers to minimize EMI. The device features ±15kV Human Body Model ESD protection, fail-safe receiver circuitry guaranteeing a logic-high output when inputs are open or shorted, and a typical quiescent supply current of 375µA. It utilizes an 8-pin SOIC package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Fail-safe receiver circuitry ensures a logic-high output state when differential inputs are open or shorted.
• Slew-rate limiting reduces electromagnetic interference and reflections for error-free transmission at lower speeds.
• Enhanced electrostatic discharge protection rated at ±15kV on all I/O pins using the Human Body Model.

Applications

• RS-422 and RS-485 communication networks
• EMI-sensitive industrial control applications
• Local area networks in industrial environments

Procurement Notes

Verify the component authenticity through official manufacturer channels or authorized distributors. Confirm that the ordering suffix matches the specific package type and temperature range requirements. Ensure compliance with RoHS directives if applicable to the project specifications.

Selection Notes

Select this model for full-duplex applications requiring robust ESD protection and low-power operation. It is suitable for systems where reduced EMI is critical due to its slew-rate-limited driver characteristics. Verify compatibility with existing bus termination and impedance requirements.

Part Context

This component belongs to the MAX3080E–MAX3089E family of high-speed transceivers designed for RS-485/RS-422 communication. The family includes variants with different duplex modes and selectable data rates, sharing common interface standards and pinout configurations for interchangeability in specific design contexts.

Replacement Considerations

The datasheet notes pin compatibility with industry-standard part number 75180. Designers should verify functional differences regarding internal pull-ups or specific electrical thresholds before substituting other generic RS-485 transceivers.