MAX3075EASA+T

Overview

The MAX3075EASA+T is a half-duplex RS-485 transceiver operating from a single +3.3V supply. It features one driver and one receiver with fail-safe circuitry that guarantees a logic-high output when inputs are open or shorted. The device supports data rates up to 500kbps with slew-rate-limited drivers to minimize EMI. It includes hot-swap capability on the DE and RE pins to prevent false transitions during power-up. The component provides ±15kV Human Body Model ESD protection on I/O pins and operates within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Slew-rate-limited drivers facilitate error-free transmission at speeds up to 500kbps while reducing reflections.
• Hot-swap input structure prevents erroneous data transfer during board insertion into powered backplanes.
• Fail-safe receiver design ensures a defined high state under open or shorted bus conditions.

Applications

• Industrial Control Systems
• Telecommunications Equipment
• Security Systems

Procurement Notes

Verify the specific suffix 'EESA+T' against official documentation to confirm the SOIC-8 package, extended temperature rating, and tape-and-reel packaging configuration. Ensure compatibility with the host system's 3.3V logic levels and RS-485 bus topology requirements before finalizing procurement orders.

Selection Notes

Select this component for applications requiring half-duplex communication with moderate data rates up to 500kbps. It is suitable for environments where hot-swap functionality and robust ESD protection are critical. Compare against full-duplex variants like the MAX3074 if simultaneous bidirectional communication is required.

Part Context

This part belongs to the MAX3070E–MAX3079E family of +3.3V RS-485 transceivers manufactured by Analog Devices/Maxim Integrated. The MAX3075 specifically denotes the half-duplex variant with slew-rate limiting optimized for 500kbps operation, distinguishing it from the 250kbps and 16Mbps siblings in the series.

Replacement Considerations

The MAX3072E serves as a direct functional equivalent within the same family, sharing identical electrical characteristics and pinout for half-duplex 500kbps applications. Verify package availability and lead times when substituting.