MAX3080EESD+

Overview

The MAX3080EESD+ is a full-duplex RS-422/RS-485 transceiver featuring one driver and one receiver in a 14-pin SOIC package. 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 115kbps with slew-rate limiting, which minimizes EMI and reflections. It includes ±15kV Human Body Model ESD protection on all I/O pins and fail-safe circuitry that guarantees a logic-high receiver output when inputs are open or shorted. The operating temperature range is -40°C to +85°C.

Feature Summary

• Enhanced ESD protection for RS-485 I/O pins rated at ±15kV using the Human Body Model.
• True fail-safe receiver design that maintains EIA/TIA-485 compatibility while ensuring a logic-high output during bus idle states.
• Slew-rate-limited drivers facilitate error-free data transmission by minimizing electromagnetic interference and signal reflections.

Applications

• RS-422/RS-485 communications
• Level translators
• Transceivers for EMI-sensitive applications
• Industrial-control local area networks

Procurement Notes

Verify the specific suffix 'ESD+' corresponds to the 14-pin SOIC package and the -40°C to +85°C industrial temperature range. Confirm RoHS compliance status as indicated in official documentation. Ensure the ordering information matches the exact manufacturer part number to avoid pinout or functional discrepancies.

Selection Notes

Select this component for full-duplex applications requiring robust ESD protection and fail-safe operation. The MAX3080E is optimized for lower data rates up to 115kbps due to its slew-rate limiting features. For higher speeds up to 10Mbps, consider the MAX3086E series instead. Verify that the system power supply remains within the 4.75V to 5.25V range for proper functionality.

Part Context

The MAX3080E is part of the MAX3080E–MAX3089E family of high-speed transceivers designed for RS-485/RS-422 communication. This family shares pin compatibility with industry-standard devices like the 75180 but adds enhanced features such as superior ESD protection and fail-safe circuitry. The MAX3080E specifically addresses applications where reduced electromagnetic interference is critical.

Replacement Considerations

The datasheet notes pin compatibility with the 75180. However, verify that any substitute supports the required ±15kV ESD protection level and fail-safe logic-high output state. Differences in slew-rate characteristics may affect maximum reliable data rates in noisy environments.