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 features one driver and one receiver with slew-rate limiting to minimize EMI. The device operates on a single +5V supply (4.75V to 5.25V) and supports data rates up to 250kbps. It includes ±15kV ESD protection, thermal shutdown, short-circuit current limiting, and fail-safe receiver inputs. The part utilizes quarter-unit-load receiver input impedance, allowing up to 128 transceivers on the bus. It offers a low-current shutdown mode consuming only 0.5µA.

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 high node density of up to 128 devices per bus.
• Integrated ±15kV ESD protection ensures robustness against electrostatic discharge shocks without latchup.
• Low-power shutdown mode significantly reduces supply current consumption when the device is inactive.

Drivers, Receivers, Transceivers Applications

• Industrial-control local area networks
• Low-power RS-485 communication systems
• EMI-sensitive applications requiring reduced signal harmonics

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'T' indicates tape-and-reel packaging rather than tube. Confirm the 'E' designation corresponds to the extended temperature range of -40°C to +85°C. Ensure compatibility with the required voltage levels and interface protocols before finalizing procurement orders.

Drivers, Receivers, Transceivers Selection Notes

Select this component for half-duplex applications requiring reduced EMI through slew-rate limiting. It is suitable for systems needing high node counts due to its 1/4 unit load specification. Consider alternative models like the MAX485E if higher data rates up to 2.5Mbps are required, as this device is limited to 250kbps.

Drivers, Receivers, Transceivers Part Context

This device belongs to the MAX481E/MAX483E/MAX485E/MAX487E–MAX491E family of low-power transceivers. It shares pin configurations and functional similarities with other members of this series, such as the MAX485E, but differs in slew-rate characteristics and maximum data rate specifications defined by the manufacturer.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX487EESA+ is a compatible lead-free variant within the same product line. Verify that any substitute maintains the slew-rate limitation and 1/4 unit load impedance requirements for direct replacement in existing designs.