MAX3490ESA+

Overview

The MAX3490ESA+ is a full-duplex RS-485/RS-422 transceiver operating from a single 3.0V to 3.6V supply. It contains one driver and one receiver, supporting data rates up to 10Mbps with an 8ns maximum skew. The device features fail-safe receiver inputs that guarantee a logic-high output when both inputs are open. Driver outputs include short-circuit current limiting and thermal shutdown protection. It operates within a -40°C to +85°C temperature range and utilizes an 8-pin SOIC package.

Feature Summary

• Full-duplex communication capability without separate enable pins
• Fail-safe receiver input ensuring high output during open circuit conditions
• Driver overload protection via short-circuit current limiting and thermal shutdown

Applications

• Telecommunications systems
• Industrial-control local area networks
• Transceivers for EMI-sensitive applications

Procurement Notes

Verify the component against official Analog Devices documentation to confirm pinout compatibility and electrical specifications. Ensure the ordering suffix matches the required temperature grade and packaging format. Cross-reference the manufacturer part number to validate authenticity and avoid counterfeit components.

Selection Notes

Select this component for full-duplex RS-485 or RS-422 applications requiring 10Mbps transmission speeds. It is suitable for environments needing wide common-mode voltage tolerance and robust driver protection. Verify that the system does not require slew-rate limiting, as this specific variant lacks that feature compared to other models in the series.

Part Context

The MAX3490ESA+ belongs to the MAX3483/MAX3485/MAX3486/MAX3488/MAX3490/MAX3491 family of low-power transceivers. This series provides versatile interface solutions for multipoint bus transmission lines, offering various duplex modes and data rate options within a standardized 8-pin footprint.

Replacement Considerations

MAX3490EESA+