MAX1490EACPG+

Drivers, Receivers, Transceivers Overview

The MAX1490EACPG+ is a complete, electrically isolated RS-485/RS-422 data communications interface solution manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +5V supply and supports full-duplex communication with a maximum data rate of 2.5Mbps. The device provides ±15kV ESD protection on I/O pins without latchup and withstands 1260VRMS isolation voltage for 1 minute. It features short-circuit current limiting and thermal shutdown for driver overload protection. The component is housed in a standard 24-pin DIP package.

Drivers, Receivers, Transceivers Feature Summary

• Complete electrical isolation between logic side and signal paths using integrated transceivers, optocouplers, and transformer
• Full-duplex data communication capability with fail-safe receiver input guaranteeing a known output state during open circuit conditions
• Integrated driver protection mechanisms including short-circuit current limiting and thermal shutdown to prevent excessive power dissipation

Drivers, Receivers, Transceivers Applications

• Isolated RS-485/RS-422 Data Interface Transceivers for EMI-Sensitive Applications
• Industrial-Control Local Area Networks
• Automatic Test Equipment
• HVAC/Building Control Networks
• Telecom

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'C' against official documentation to confirm temperature range compliance, as ordering suffixes may indicate variations in operating specifications or packaging. Ensure compatibility with existing 24-pin DIP footprints and validate that the single +5V supply requirement aligns with the target system's power architecture before finalizing procurement orders.

Drivers, Receivers, Transceivers Selection Notes

Select this component when full-duplex isolated communication is required at speeds up to 2.5Mbps. Unlike slew-rate-limited variants, this high-speed version allows faster transmission but requires careful cable termination to minimize reflections. Verify that the 24-pin DIP package fits the mechanical constraints and that the 1260VRMS isolation rating meets the safety requirements of the application environment.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MAX1480E/MAX1490E family of isolated RS-485/RS-422 interfaces. While the MAX1480E series offers half-duplex operation, the MAX1490E variant specifically enables full-duplex communication. Both share similar isolation characteristics and protection features, differing primarily in duplex mode and pin configuration within their respective DIP packages.

Drivers, Receivers, Transceivers Replacement Considerations

Direct substitutes include other MAX1490EA variants with different temperature ranges or packaging options, such as MAX1490EAEPI. Cross-referencing with the manufacturer's selector guide is recommended to ensure functional equivalence regarding isolation voltage and data rates.