MAX3071EASA+

Overview

The MAX3071EASA+ is a full-duplex RS-485 transceiver operating from a single 3.3V supply. It features one driver and one receiver with ±15kV ESD protection on I/O pins. The device incorporates true fail-safe circuitry, ensuring a logic-high receiver output when inputs are open or shorted. Enhanced slew-rate limiting minimizes electromagnetic interference (EMI) and reflections, supporting error-free data transmission up to 250kbps. Supply current is 800μA under no-load conditions. The component operates within an industrial temperature range of -40°C to +125°C.

Feature Summary

• True fail-safe receiver guarantees a logic-high output during input faults or bus idle states while maintaining EIA/TIA-485 compatibility.
• Hot-swap capability on DE and RE inputs prevents false transitions and erroneous data transfer during power-up or hot insertion.
• Enhanced slew-rate limiting reduces signal reflections caused by improperly terminated cables, facilitating error-free communication at lower speeds.

Applications

• Industrial control systems
• Telecommunications equipment
• Security systems
• Lighting systems

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and temperature rating. Ensure the ordering code matches the required RoHS compliance status. Cross-reference the manufacturer's latest datasheet revision to validate pinout configurations and electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component for applications requiring full-duplex RS-485 communication with robust noise immunity. The integrated fail-safe feature is critical for maintaining system stability during bus faults. Consider the 250kbps maximum data rate constraint imposed by the slew-rate limiting when designing high-speed networks.

Part Context

This part belongs to the MAX3070E–MAX3079E family of 3.3V RS-485 transceivers manufactured by Analog Devices/Maxim Integrated. While sharing common interface standards and protection features with siblings like the MAX3070E and MAX3072E, it is specifically designated for full-duplex operation with fixed 250kbps slew-rate limiting.

Replacement Considerations

Direct functional substitutes within the same family include the MAX3070E and MAX3076E for full-duplex applications. Verify that alternative parts match the specific 250kbps slew-rate limitation and the -40°C to +125°C extended temperature range requirements.