MAX1480AEPI

Drivers, Receivers, Transceivers Overview

The MAX1480AEPI+ is a complete, electrically isolated RS-485/RS-422 data-communications interface solution housed in a 28-pin wide plastic DIP package. It integrates transceivers, optocouplers, and a transformer to provide isolation between the logic side and the isolated RS-485/RS-422 side. The device operates on a single +5V supply and supports half-duplex communication with a maximum data rate of 2.5Mbps. It features short-circuit current limiting and thermal shutdown protection for the driver outputs. The receiver includes a fail-safe feature that guarantees a known output state if the input is open circuit.

Drivers, Receivers, Transceivers Feature Summary

• Provides complete electrical isolation using integrated transceivers, optocouplers, and a transformer within a standard DIP package.
• Supports half-duplex communication with an unrestricted driver slew rate enabling high-speed data transmission up to 2.5Mbps.
• Includes driver short-circuit current limiting and thermal shutdown circuitry to protect against excessive power dissipation.
• Features a receiver fail-safe mechanism that ensures a defined output logic level when the differential input is left open.

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

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'EPI' corresponds to the -40°C to +85°C extended temperature range and the 28-pin PDIP package configuration. Confirm RoHS compliance status as indicated by the '+' suffix in ordering information. Ensure the logic-side supply voltage matches the required +5V specification for proper operation of the internal isolation barrier and drivers.

Drivers, Receivers, Transceivers Selection Notes

Select the MAX1480AEPI+ when high-speed data rates up to 2.5Mbps are required alongside galvanic isolation. This variant differs from the B and C versions by lacking slew-rate limiting, making it suitable for applications where signal integrity does not require reduced edge rates. Verify that the half-duplex architecture aligns with the system's communication protocol requirements compared to full-duplex alternatives.

Drivers, Receivers, Transceivers Part Context

The MAX1480A belongs to a family of isolated interface solutions that also includes the MAX1480B, MAX1480C, and full-duplex variants like the MAX1490A. While the B and C versions limit slew rates for lower data rates, the A version prioritizes speed. All variants share the same hybrid microcircuit construction and isolation principles but differ in switching characteristics and application suitability.

Drivers, Receivers, Transceivers Replacement Considerations

MAX1480ACPI+