MAX1487ECPA+

Drivers, Receivers, Transceivers Overview

The MAX1487ECPA+ is a low-power RS-485/RS-422 transceiver featuring one driver and one receiver in an 8-pin Plastic DIP package. It supports data rates up to 2.5Mbps with ±15kV ESD protection on all pins. Operating from a single +5V supply (4.75V to 5.25V), it draws as little as 120µA when unloaded or disabled. The device includes short-circuit current limiting, thermal shutdown, and fail-safe receiver inputs that guarantee a logic-high output if the input is open circuit. Designed for half-duplex applications, it features quarter-unit-load receiver input impedance, allowing up to 128 transceivers on the bus.

Drivers, Receivers, Transceivers Feature Summary

• Provides ±15kV electrostatic discharge (ESD) protection on driver outputs and receiver inputs without latchup.
• Features fail-safe receiver inputs that guarantee a logic-high output state when the differential input is open circuit.
• Includes thermal shutdown circuitry that places driver outputs into a high-impedance state to prevent excessive power dissipation.
• Offers quarter-unit-load receiver input impedance to support up to 128 transceivers on a single bus.

Drivers, Receivers, Transceivers Applications

• Low-Power RS-485 Transceivers
• Low-Power RS-422 Transceivers
• Industrial-Control Local Area Networks

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'CPA' corresponds to the 8-pin Plastic DIP package and the 0°C to +70°C temperature range. Confirm RoHS compliance status for the exact ordering code. Ensure the source document explicitly lists this part number variant to avoid confusion with standard non-E versions or other package types like SOIC.

Drivers, Receivers, Transceivers Selection Notes

Select the MAX1487ECPA+ for half-duplex RS-485 or RS-422 communication requiring high-speed data transmission up to 2.5Mbps. Choose this component over slew-rate-limited variants when maximum data rate is prioritized over EMI reduction. Ensure the application environment falls within the commercial temperature range of 0°C to +70°C and utilizes a single 5V power supply.

Drivers, Receivers, Transceivers Part Context

The MAX1487E is part of the MAX481E/MAX483E/MAX485E/MAX487E–MAX491E/MAX1487E family of low-power transceivers. Unlike the slew-rate-limited MAX483E and MAX487E, the MAX1487E has unrestricted driver slew rates to achieve higher data speeds. It shares pin compatibility with the standard MAX1487 but adds enhanced ESD protection structures suitable for harsh environments.

Drivers, Receivers, Transceivers Replacement Considerations

The standard MAX1487 is functionally compatible but lacks the ±15kV ESD protection found in the 'E' version. For full-duplex requirements, consider the MAX488E or MAX490E. For lower speed applications requiring reduced EMI, the MAX483E or MAX487E are alternatives.