MAX14783EAUA+

Drivers, Receivers, Transceivers Overview

The MAX14783EAUA+ is a half-duplex RS-485 transceiver in an 8-pin µMAX package. It operates on a 3.0V to 5.5V supply and supports data rates up to 42Mbps at 3.0V–3.6V, or 6Mbps at 3.0V–5.5V. The device provides ±35kV HBM ESD protection and features true fail-safe receiver inputs that guarantee a logic-high output when inputs are shorted or open. It includes hot-swap capability to prevent false transitions during power-up. The operating temperature range is -40°C to +125°C.

Drivers, Receivers, Transceivers Feature Summary

• Integrated high-voltage electrostatic discharge (ESD) protection on driver outputs and receiver inputs.
• True fail-safe receiver design ensures a defined logic-high state during input shorts or open circuits.
• Hot-swap functionality prevents bus contention and false data transitions during board insertion or power-up sequences.

Drivers, Receivers, Transceivers Applications

• Motion Controllers
• Field Bus Networks
• Encoder Interfaces

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'A' indicates the extended temperature range (-40°C to +125°C). Confirm the package type matches the required PCB footprint for the 8-pin µMAX configuration. Ensure the application voltage does not exceed the maximum ratings specified in the datasheet to maintain reliability.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring robust communication over long cable runs with high noise immunity. The extended temperature range makes it suitable for industrial environments. Consider the reduced data rate at higher supply voltages if operating above 3.6V.

Drivers, Receivers, Transceivers Part Context

This part belongs to the MAX14783E family of high-speed RS-485 transceivers. It shares functional similarities with the MAX14783EESA+ and MAX14783EATA+, differing primarily in package style and thermal characteristics. The EAUA variant specifically utilizes the compact µMAX form factor.

Drivers, Receivers, Transceivers Replacement Considerations

Direct pin-compatible alternatives within the same series include the MAX14783EESA+ (SOIC package) and MAX14783EATA+ (TDFN-EP package). Verify that the replacement part meets the specific thermal and mechanical requirements of the existing design.

Drivers, Receivers, Transceivers FAQ

What is the maximum data rate at a 5V supply?

At a supply voltage between 3.0V and 5.5V, the maximum data rate is 6Mbps.

How does the fail-safe feature work?

The receiver guarantees a logic-high output on RO when the differential input voltage (A-B) is greater than or equal to -10mV, which occurs during input shorts or open circuits.

What is the shutdown current?

The shutdown supply current is typically less than 10µA when RE is driven high and DE is driven low.