MAX1490EBCPG+

Drivers, Receivers, Transceivers Overview

The MAX1490EBCPG+ is a complete, electrically isolated RS-485/RS-422 data communications interface solution in a hybrid microcircuit. It features full-duplex communication with ±15kV ESD protection on I/O pins and withstands 1260VRMS (1min) isolation voltage. The device operates from a single +5V supply and includes slew-rate limited drivers for error-free transmission up to 160kbps. It provides current limiting and thermal shutdown for driver overload protection within 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 known output state during open circuit conditions
• Slew-rate limited drivers minimize electromagnetic interference and reduce reflections caused by improperly terminated cables
• Integrated short-circuit current limiting and thermal shutdown circuitry protects against 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 'BCPG' against official manufacturer documentation to confirm temperature range and packaging details, as datasheets typically list 'CPI' for commercial and 'EPI' for industrial ranges. Confirm component availability status directly with authorized distributors, as older Maxim Integrated products may have end-of-life or last-time-buy designations. Ensure proper handling procedures are followed for the DIP package during assembly.

Drivers, Receivers, Transceivers Selection Notes

Select this component when full-duplex isolated communication is required with robust EMI performance. The slew-rate limitation makes it suitable for applications where cable reflections are a concern at moderate data rates. Verify that the system requires a single +5V supply architecture compatible with the internal power transfer mechanism across the isolation barrier. Consider the 24-pin DIP footprint for through-hole mounting requirements.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MAX1480E/MAX1490E family of isolated RS-485/RS-422 interfaces. While the MAX1480 variants support half-duplex operation, the MAX1490 series specifically enables full-duplex communication. The 'E' designation indicates extended temperature range capabilities compared to commercial variants. The device integrates all necessary components for galvanic isolation, eliminating the need for external isolators.

Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers: MAX1490EA, MAX1490EB.