MAX1490EBCPG

Drivers, Receivers, Transceivers Overview

The MAX1490EBCPG is a complete, electrically isolated RS-485/RS-422 data interface manufactured by Analog Devices Inc./Maxim Integrated. It integrates an isolated power supply and digital isolator within a single package to enable robust bidirectional communication in noisy environments. The device supports data rates up to 250kbps and operates on a single +5V supply. Key electrical characteristics include ±15kV ESD protection on the I/O pins and isolation ratings of 1260VRMS for one minute. It features slew-rate limited drivers to minimize electromagnetic interference (EMI) and signal reflections.

Drivers, Receivers, Transceivers Feature Summary

• Integrated isolated power supply eliminates the need for external magnetic components
• Slew-rate limited drivers reduce EMI and improve signal integrity on long cables
• High immunity to common-mode transients with ±15kV ESD protection
• Fail-safe receiver ensures high logic output when inputs are open

Drivers, Receivers, Transceivers Applications

• Industrial automation and control networks
• Medical equipment requiring galvanic isolation
• Building automation and security systems
• Telecommunications infrastructure

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'BCPG' against the manufacturer's current datasheet to confirm pinout compatibility and material compliance. Check for obsolescence notices or PCNs as older Maxim products may have lifecycle changes. Ensure the required isolation voltage rating meets the safety standards of the target application environment before finalizing procurement.

Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems that require both data transmission and power isolation across a barrier without using discrete transformers or optocouplers. It is suitable for applications needing moderate data rates up to 250kbps where EMI reduction is critical. Compare against non-isolated RS-485 transceivers if isolation is not required to optimize cost and board space.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MAX1480/MAX1490 family of isolated interfaces. It is functionally similar to the MAX1490EB but packaged in a 24-pin PDIP format. The family addresses the need for reliable communication in electrically noisy industrial settings by providing complete galvanic separation between the host controller and the bus.

Drivers, Receivers, Transceivers Replacement Considerations

Direct replacements include the MAX1490EB for the same functionality in different packaging. Verify pin-to-pin compatibility with other isolated RS-485/422 transceivers from Analog Devices or third-party manufacturers if redesigning the PCB layout.