MAX1480ECEPI+

Drivers, Receivers, Transceivers Overview

The MAX1480ECEPI+ is a complete, electrically isolated RS-485/RS-422 data communications interface solution in a hybrid microcircuit. It features reduced-slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at rates up to 160kbps. The device provides ±15kV electrostatic discharge (ESD) protection on I/O pins without latchup. It withstands 1260VRMS isolation voltage for 1 minute or 1520VRMS for 1 second. Powered by a single +5V supply, it operates within a temperature range of -40°C to +85°C and is housed in a 28-pin wide plastic DIP package.

Drivers, Receivers, Transceivers Feature Summary

• Reduced-slew-rate drivers minimize electromagnetic interference and signal reflections for error-free transmission
• Complete electrical isolation with high-voltage withstand capability between logic and signal paths
• Robust input/output protection against high-energy electrostatic discharge events
• Integrated thermal shutdown and current limiting protect the driver outputs from fault conditions

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 'E' indicates the extended temperature range (-40°C to +85°C) and 'C' denotes the slew-rate-limited variant. Confirm the 'P' suffix corresponds to the 28-pin PDIP package. Ensure the '+' suffix confirms RoHS compliance. Cross-reference the manufacturer's latest ordering guide to validate availability and any potential pinout or functional changes associated with the specific manufacturing lot.

Drivers, Receivers, Transceivers Selection Notes

Select this component when galvanic isolation is required between the host logic and the RS-485/RS-422 bus. The MAX1480EC variant is appropriate for applications requiring reduced EMI and lower data rates up to 160kbps. For higher speed requirements up to 2.5Mbps, the MAX1480EA variant should be considered instead. Ensure the system design accommodates the necessary external pull-up resistors for the open-collector receiver output and driver-enable signals as specified in the application circuit diagrams.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MAX1480E/MAX1490E family of isolated transceivers. The MAX1480 series specifically supports half-duplex communication, whereas the MAX1490 series supports full-duplex operation. Within the MAX1480 family, the 'A' suffix denotes high-speed variants, while the 'C' suffix identifies slew-rate-limited versions designed for noise reduction. All variants share the same fundamental isolation architecture and package options.

Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers include MAX1480AEPI+ and MAX1480ACPI+. These parts share the same 28-pin DIP package and isolation barrier specifications. Verify that the replacement variant matches the required data rate (high-speed vs. slew-limited) and operating temperature range before implementation.