MAX3075EESA+T

Overview

The MAX3075EESA+T is a half-duplex RS-485 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +3.3V supply voltage and supports data rates up to 500kbps with slew-rate-limited drivers. The device features ±15kV ESD protection, fail-safe circuitry ensuring a logic-high receiver output when inputs are open or shorted, and hot-swap capability for safe bus insertion. It includes one driver and one receiver in an 8-pin SOIC package, drawing 800µA of supply current.

Feature Summary

• Slew-rate-limited drivers minimize electromagnetic interference (EMI) and reduce reflections caused by improperly terminated cables.
• Hot-swap input structure prevents false transitions on the bus during power-up or hot insertion.
• Fail-safe receiver guarantees a logic-high output when receiver inputs are open, shorted, or connected to a terminated bus with all transmitters disabled.

Applications

• Lighting Systems
• Industrial Control
• Telecom
• Security Systems
• Instrumentation

Procurement Notes

Verify the component authenticity through official manufacturer channels or authorized distributors. Confirm the specific ordering suffix matches the required packaging format, such as reel or cut tape, as indicated in the product documentation. Ensure the RoHS compliance status aligns with environmental regulations applicable to your manufacturing process before finalizing procurement orders.

Selection Notes

Select this component for applications requiring half-duplex communication at speeds up to 500kbps. It is suitable for environments where robust ESD protection and fail-safe operation are critical. Consider the thermal dissipation characteristics if operating near maximum temperature limits. Verify that the system design accommodates the 1/8-unit load receiver input impedance for proper bus loading calculations.

Part Context

This part belongs to the MAX3070E–MAX3079E family of +3.3V, ±15kV ESD-protected, fail-safe, hot-swap RS-485 transceivers. The MAX3075E specifically denotes the half-duplex variant with slew-rate limiting optimized for 500kbps transmission speeds. It shares common interface standards and protection features with other members of the series, differing primarily in duplex mode and data rate capabilities.

Replacement Considerations

Direct pin-compatible substitutes within the same family include the MAX3072E and MAX3078E. These alternatives offer similar electrical characteristics but may differ in data rate specifications or operational modes. Verify functional compatibility regarding duplex configuration and slew-rate limitations before substituting.