MAX3071EASA

Overview

The MAX3071EASA is a full-duplex RS-485 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single 3.3V supply and features one driver and one receiver within an 8-SOIC package. The device supports data rates up to 250kbps with enhanced slew-rate limiting to minimize EMI. It provides ±15kV Human Body Model ESD protection on I/O pins, true fail-safe circuitry ensuring a logic-high output when inputs are open or shorted, and hot-swap capability for the DE and RE pins.

Feature Summary

• Hot-swap input structure on DE and RE pins prevents false bus transitions during power-up or insertion
• True fail-safe receiver guarantees a logic-high output when inputs are open or shorted while maintaining EIA/TIA-485 compatibility
• Enhanced slew-rate limiting minimizes electromagnetic interference (EMI) and reduces reflections from improperly terminated cables

Applications

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

Procurement Notes

Verify the specific suffix 'EASA' corresponds to the required operating temperature range of -40°C to +125°C and the 8-SOIC surface-mount package. Confirm that the full-duplex configuration aligns with system requirements, as this variant lacks the shutdown mode found in other family members. Cross-reference the manufacturer's latest datasheet revision to ensure compliance with current RoHS standards before finalizing procurement orders.

Selection Notes

Select the MAX3071EASA for applications requiring full-duplex communication at speeds up to 250kbps where EMI reduction is critical. This component is suitable for environments demanding robust ESD protection and fail-safe operation without the need for a low-power shutdown mode. Ensure the design accommodates the continuous power dissipation limits specified for the 8-SOIC package under maximum ambient temperature conditions.

Part Context

The MAX3071EASA belongs to the MAX3070E–MAX3079E family of +3.3V, ±15kV ESD-protected, fail-safe, hot-swap RS-485 transceivers. Within this series, it is designated specifically for full-duplex operations with reduced slew-rate drivers optimized for 250kbps transmission. It shares common interface characteristics with siblings like the MAX3070E and MAX3073E but differs in duplex mode and speed capabilities compared to higher-speed variants.

Replacement Considerations

The MAX3070EASA and MAX3073EASA are direct functional substitutes within the same family, offering identical pinouts and specifications for full-duplex 250kbps operation. Verify that any replacement maintains the -40°C to +125°C industrial temperature range and the 8-SOIC package footprint to ensure mechanical compatibility.