MAX1490EBEPG+

Drivers, Receivers, Transceivers Overview

The MAX1490EBEPG+ is a complete, electrically isolated RS-485/RS-422 data communications interface hybrid microcircuit. It integrates transceivers, optocouplers, and a transformer within a standard 24-pin DIP package. The device supports full-duplex communication with slew-rate-limited drivers that minimize EMI and reduce reflections, enabling error-free data transmission at rates up to 160kbps. It withstands 1260VRMS isolation voltage for one minute and provides ±15kV ESD protection on I/O pins. A single +5V supply powers both sides of the interface, while driver outputs feature short-circuit current limiting and thermal shutdown protection.

Drivers, Receivers, Transceivers Feature Summary

• Complete electrical isolation between logic side and signal paths using integrated optocouplers and transformers
• Slew-rate limited drivers designed to minimize electromagnetic interference and signal reflections
• Full-duplex data communication capability with fail-safe receiver inputs
• Integrated thermal shutdown and short-circuit current limiting for driver overload protection

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 'E' indicates the extended temperature range (-40°C to +85°C) compared to commercial variants. Confirm the 'P' suffix corresponds to the plastic DIP package type. Ensure the 'G+' designation aligns with current RoHS compliance requirements. Cross-reference the manufacturer's latest ordering guide to confirm availability status and any potential pinout or functional changes in updated revisions.

Drivers, Receivers, Transceivers Selection Notes

Select this component when full-duplex isolated communication is required alongside strict EMI constraints. The slew-rate limitation makes it suitable for noisy environments or improperly terminated cables where high-speed edges might cause reflections. Compare against non-slew-limited variants if higher data rates up to 2.5Mbps are necessary. Ensure the system design accommodates the single +5V supply requirement for both logic and isolated sides.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MAX1480E/MAX1490E family of isolated RS-485/RS-422 interfaces. While the MAX1480 series offers half-duplex operation, the MAX1490 variant specifically provides full-duplex capabilities. The 'C' suffix typically denotes commercial temperature ranges, whereas the 'E' suffix specifies industrial temperature ratings. This family utilizes a hybrid microcircuit architecture to achieve galvanic isolation without external discrete components.

Drivers, Receivers, Transceivers Replacement Considerations

MAX1490EAEPG+