MAX487EESA+T

Drivers, Receivers, Transceivers Overview

The MAX487EESA+T is a low-power, half-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It integrates one driver and one receiver in an 8-pin SOIC package. The device supports data rates up to 250kbps with slew-rate-limited drivers to minimize EMI. It operates from a single +5V supply (4.75V to 5.25V) and features ±15kV ESD protection on all pins. Key electrical parameters include a no-load supply current of 300µA to 500µA, a shutdown supply current of 0.5µA to 10µA, and a receiver input resistance of 48kΩ allowing up to 128 unit loads on the bus. The operating temperature range is -40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Slew-rate-limited drivers reduce electromagnetic interference and reflections for error-free transmission.
• Quarter-unit-load receiver input impedance enables connection of up to 128 transceivers on the bus.
• Integrated low-power shutdown mode significantly reduces supply current when disabled.
• Robust ±15kV electrostatic discharge protection ensures reliability in harsh environments.

Drivers, Receivers, Transceivers Applications

• Low-Power RS-485 Transceivers
• Low-Power RS-422 Transceivers
• Level Translators
• Transceivers for EMI-Sensitive Applications
• Industrial-Control Local Area Networks

Drivers, Receivers, Transceivers Procurement Notes

Verify the component authenticity by checking the manufacturer marking against official datasheet specifications. Confirm the package type matches the required SOIC-8 footprint and ensure the temperature grade corresponds to the industrial range requirements. Cross-reference the ordering suffix with the manufacturer's part numbering system to validate the specific variant being procured.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring reduced EMI due to its slew-rate-limited driver characteristics. It is suitable for systems needing high node density on the bus because of its quarter-unit-load receiver impedance. Ensure the design utilizes a single +5V supply and requires half-duplex communication capabilities within the specified industrial temperature range.

Drivers, Receivers, Transceivers Part Context

This device belongs to the MAX48xE family of low-power transceivers designed for RS-485 and RS-422 communications. It shares functional similarities with the MAX481E, MAX483E, MAX485E, and MAX1487E but is distinct in its combination of slew-rate limiting and high bus load capacity. The 'E' suffix denotes enhanced ESD protection compared to non-E versions.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX1487E is a compatible alternative offering similar functionality with potentially different power consumption profiles. Other members of the MAX48xE family may serve as substitutes if their specific data rate or impedance requirements align with the application needs.