MAX490ESA

Drivers, Receivers, Transceivers Overview

The MAX490ESA is a low-power, full-duplex transceiver supporting RS-422 and RS-485 communication protocols. It integrates one driver and one receiver within an 8-pin SOIC package. The device operates on a single 5V supply with a maximum data rate of 2.5 Mb/s. Key electrical parameters include a supply voltage range of 4.75V to 5.25V and a quiescent current of 500 µA. It features 15 kV ESD protection and operates across industrial temperature ranges from -40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Slew-rate-limited drivers minimize electromagnetic interference (EMI) and reduce signal reflections on improperly terminated cables.
• Integrated 15 kV human-body model ESD protection enhances reliability in harsh environments without external components.
• Low-power design ensures minimal current consumption during active operation, suitable for battery-powered applications.

Drivers, Receivers, Transceivers Applications

• Industrial automation systems requiring robust serial communication over long distances.
• Building automation networks utilizing RS-485 multi-drop configurations.
• Data acquisition systems interfacing sensors via differential signaling standards.

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm temperature grade and packaging type. Ensure compliance with RoHS directives as indicated by the '+' designation. Cross-reference datasheet revisions to validate pinout compatibility and electrical characteristics before integration into production designs.

Drivers, Receivers, Transceivers Selection Notes

Select this component when full-duplex communication is required at speeds up to 2.5 Mb/s. Compare against slew-rate-limited variants like the MAX488 if lower data rates are sufficient for EMI reduction. Confirm that the 8-pin SOIC footprint aligns with the target PCB layout constraints and thermal management requirements.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MAX4xx series of low-power RS-485/RS-422 transceivers manufactured by Analog Devices under the Maxim Integrated brand. It shares functional similarities with other members of the family but is distinguished by its specific speed capabilities and full-duplex architecture within the standard narrow SOIC-8 package.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX490EESA+ serves as a verified industrial-grade replacement variant offering extended temperature performance compared to the commercial grade MAX490ESA+. Verify package compatibility and ensure that any substitute maintains the same 2.5 Mb/s data rate specification.