MAX3073EESD+

Overview

The MAX3073EESD+ is a +3.3V, full-duplex RS-485 transceiver featuring one driver and one receiver in a 14-pin SOIC package. It supports data rates up to 500kbps with slew-rate-limited drivers. The device operates from a single 3.3V supply with a typical quiescent current of 1.5mA. It provides ±15kV Human Body Model ESD protection on I/O pins and includes fail-safe circuitry that guarantees a logic-high receiver output when inputs are open or shorted. Hot-swap capability prevents false transitions during bus insertion.

Feature Summary

• Slew-rate-limited drivers minimize electromagnetic interference (EMI) and reduce signal reflections caused by improperly terminated cables.
• Integrated hot-swap input structure on DE and RE pins eliminates false transitions on the bus during power-up or hot insertion.
• Fail-safe receiver design ensures a logic-high output state when receiver inputs are left open or shorted.

Applications

• Industrial Control Systems
• Telecommunications Equipment
• Security Systems

Procurement Notes

Verify the component against official Analog Devices documentation to confirm pinout compatibility and electrical specifications. Ensure the selected package variant matches the required PCB footprint. Cross-reference the manufacturer part number to validate authenticity and revision status before integration into production designs.

Selection Notes

Select this model for applications requiring full-duplex communication at speeds up to 500kbps. It is suitable for environments needing robust ESD protection and fail-safe behavior. Consider alternative family members if half-duplex operation or different data rate constraints are required.

Part Context

This component belongs to the MAX3070E–MAX3079E series of low-power, +3.3V RS-485 transceivers. The series offers various configurations including half-duplex options and selectable slew rates. All devices share common features such as 1/8-unit load receiver input impedance, allowing up to 256 transceivers on a single bus.

Replacement Considerations

The MAX3074E and MAX3075E are direct functional substitutes within the same series. Verify that the replacement part maintains the required full-duplex configuration and 500kbps data rate specification.