MAX3441EASA+

Overview

The MAX3441EASA+ is a fault-protected RS-485 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +5V supply and supports data rates up to 10Mbps. The device features ±60V protection on the A and B bus lines against signal faults, along with ±15kV ESD protection on all pins. It includes true fail-safe receiver inputs that guarantee a logic-high output when inputs are open or shorted. Hot-swap circuitry prevents false transitions during board insertion into live backplanes. The component is housed in an 8-pin SO package and is specified for operation over the automotive temperature range of -40°C to +125°C.

Feature Summary

• Guaranteed 10Mbps data rate without slew-rate limiting
• Hot-swappable input structure for telecom applications
• True fail-safe receiver inputs ensuring logic-high output under fault conditions
• ±60V fault protection on communication bus lines

Applications

• RS-422/RS-485 Communications
• Industrial Networks
• Telecommunications Systems
• HVAC Controls

Procurement Notes

Verify the specific suffix 'A' indicates the automotive temperature range (-40°C to +125°C) rather than the industrial range. Confirm the '+' suffix denotes lead-free and RoHS compliance status as per the manufacturer's current documentation. Ensure the package type matches the required 8-pin SO footprint for PCB layout compatibility.

Selection Notes

Select this model specifically for applications requiring high-speed data transmission up to 10Mbps. Unlike the MAX3440E, this variant does not feature slew-rate limiting, making it suitable for shorter cable runs where reflections are minimal. Verify that the system requires the automotive temperature grade indicated by the 'A' suffix in the part number.

Part Context

This component belongs to the MAX3440E–MAX3444E family of fault-protected RS-485 and J1708 transceivers. Within this series, the MAX3441E is distinguished by its support for data rates up to 10Mbps, whereas other variants like the MAX3440E are limited to 250kbps due to slew-rate limiting. All members share common fault protection and fail-safe characteristics.

Replacement Considerations

The MAX3441EESA+ serves as the industrial temperature range equivalent within the same package. Other family members such as the MAX3440E or MAX3442E offer similar functionality but are restricted to lower data rates of 250kbps.