MAX1490EAEPG+

Drivers, Receivers, Transceivers Overview

The MAX1490EAEPG+ 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 data rates up to 2.5Mbps. The device provides ±15kV ESD protection on I/O pins 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 and operates within a temperature range of -40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Complete electrical isolation between logic side and signal paths using transceivers, optocouplers, and a transformer
• Full-duplex data communication capability with high-speed transmission up to 2.5Mbps
• Integrated fail-safe receiver feature guaranteeing a known output state when the input is open circuit
• Driver outputs protected against excessive power dissipation via thermal shutdown circuitry

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 'EPG' against official documentation to confirm lead-free status and packaging details. Ensure compatibility with existing 24-pin DIP footprints. Confirm that the full-duplex configuration meets system requirements compared to half-duplex alternatives. Validate operating temperature ranges for the intended environment.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring galvanic isolation in RS-485 or RS-422 networks. Choose the MAX1490EA variant over the EC version when data rates exceeding 160kbps are necessary. Consider the 24-pin DIP package constraints during PCB layout. Verify that the single +5V supply architecture aligns with the system power design.

Drivers, Receivers, Transceivers Part Context

The MAX1490EAEPG+ belongs to the MAX1490E family of isolated interface ICs. It is functionally similar to the MAX1480EA but differs in supporting full-duplex communication rather than half-duplex. Both variants share the same isolation barrier technology and protection features. The EP designation indicates a plastic DIP package, while G typically denotes lead-free compliance.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX1480EA serves as a functional alternative for half-duplex applications. The MAX1490EB offers reduced slew rates for lower EMI at speeds up to 160kbps. Verify pinout compatibility and isolation voltage ratings before substitution.