MAX3081ECSA+

Overview

The MAX3081ECSA+ is a full-duplex RS-422/RS-485 transceiver in an 8-pin SO package. It features one driver and one receiver with fail-safe circuitry guaranteeing a logic-high output when inputs are open or shorted. The device supports data rates up to 115kbps via slew-rate-limited drivers that minimize EMI. It operates on a single +5V supply (4.75V to 5.25V) with typical quiescent current of 375µA. Inputs and outputs provide ±15kV ESD protection per the Human Body Model.

Feature Summary

• Fail-safe receiver guarantees a logic-high output state when differential inputs are open, shorted, or disconnected from active drivers.
• Slew-rate-limited driver design minimizes electromagnetic interference and reduces signal reflections on improperly terminated cables.
• Enhanced electrostatic discharge protection rated at ±15kV for all transmitter outputs and receiver inputs.

Applications

• RS-422 and RS-485 communication networks
• Industrial control local area networks
• EMI-sensitive applications requiring reduced signal reflections

Procurement Notes

Verify the component matches the exact part number MAX3081ECSA+. Confirm the manufacturer is Analog Devices Inc./Maxim Integrated. Ensure the suffix indicates the standard operating temperature range and RoHS compliance status as documented in official specifications.

Selection Notes

Select this component for full-duplex applications requiring error-free transmission up to 115kbps. It is suitable where low power consumption and high noise immunity are required. Verify compatibility with existing bus termination requirements and ensure the system voltage aligns with the specified 5V supply range.

Part Context

This device belongs to the MAX3080E–MAX3089E family of high-speed transceivers. It shares pinout compatibility with industry-standard parts like the 75180 but includes additional internal features such as enhanced ESD protection and specific slew-rate limiting characteristics defined by its model designation.

Replacement Considerations

The MAX3081ECSA+ is pin-compatible with the 75180. Designers should verify that any substitute maintains the same full-duplex configuration and fail-safe threshold characteristics to ensure proper bus behavior during idle states.