MAX483EESA

Overview

The MAX483EESA+T is a low-power, half-duplex transceiver designed for RS-485 and RS-422 communication protocols. It integrates one driver and one receiver within an 8-SOIC package. The device operates on a single 4.75V to 5.25V supply voltage and supports data rates up to 250kbps. Key electrical specifications include ±15kV ESD protection on both the driver outputs and receiver inputs, a receive input hysteresis of 70mV, and a maximum operating temperature range of -40°C to +85°C.

Feature Summary

• Features slew-rate-limited drivers to minimize electromagnetic interference (EMI) and reduce signal reflections on improperly terminated cables.
• Provides robust ±15kV electrostatic discharge (ESD) protection on all driver outputs and receiver inputs for harsh environments.
• Incorporates fail-safe circuitry that ensures a high logic state at the receiver output when inputs are open or floating.

Applications

• Industrial automation systems requiring reliable multi-point communication over long distances.
• Building automation networks utilizing RS-485 bus topologies.
• Metering applications such as electricity, gas, and water meters with low power consumption requirements.

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm packaging type and environmental compliance. The 'E' indicates an extended industrial temperature range, while 'ESA' denotes the SOIC-8 surface-mount package. Confirm RoHS status through manufacturer certificates rather than distributor descriptions.

Selection Notes

Select this component for designs requiring low quiescent current and inherent EMI reduction without external filtering. Ensure the application does not exceed the 250kbps data rate limit. Verify that the system voltage remains strictly within the 4.75V to 5.25V window to maintain signal integrity and timing specifications.

Part Context

This part belongs to the MAX48x family of low-power RS-485/RS-422 transceivers. It shares functional similarities with the MAX481, MAX485, and MAX1487 but is distinguished by its specific slew-rate limiting characteristics and pinout configuration optimized for standard industrial interfaces.

Replacement Considerations

Publicly confirmed substitutes include the MAX481EESA+T, MAX485EESA+T, and MAX1487EESA+T. These components share identical pinouts and core functionality but may differ in specific drive strength or shutdown features.