MAX3088ECSA+T

Overview

The MAX3088ECSA+T is a half-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +5V supply (4.75V to 5.25V) and supports data rates up to 10Mbps with unrestricted driver slew rates. The device features ±15kV ESD protection on all I/O pins, fail-safe circuitry ensuring a logic-high receiver output when inputs are open or shorted, and a low quiescent supply current of 600µA maximum. It is housed in an 8-pin SOIC package and operates within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Enhanced ±15kV electrostatic discharge protection on all RS-485 input/output pins using the Human Body Model.
• True fail-safe receiver design that guarantees a logic-high output state when differential inputs are open, shorted, or disconnected.
• Unrestricted driver slew rate capability enabling high-speed data transmission up to 10Mbps for RS-485 and RS-422 applications.

Applications

• RS-422 and RS-485 serial communication networks
• Industrial control local area networks
• Level translation interfaces

Procurement Notes

Verify the component authenticity through official manufacturer channels or authorized distributors. Confirm the specific ordering suffix matches the required package type and temperature rating. Ensure compliance with RoHS directives if applicable to the target assembly process. Cross-reference the datasheet revision to confirm pinout and electrical characteristics align with system requirements before procurement.

Selection Notes

Select this component for half-duplex systems requiring high-speed data transfer without slew-rate limitations. It is suitable for environments where robust ESD protection and fail-safe operation are critical. Compare against slew-rate-limited variants like the MAX3082E if electromagnetic interference reduction at lower speeds is prioritized over maximum throughput.

Part Context

This part belongs to the MAX3080E–MAX3089E family of high-speed transceivers. Within this series, the MAX3088E specifically denotes a half-duplex device with unlimited driver slew rates. Other family members offer full-duplex operation, selectable slew rates, or different duplex modes via pin selection.

Replacement Considerations

The MAX3082E is a pin-compatible alternative within the same family but features reduced slew rates limited to 115kbps. Verify that the slower transition times of the replacement do not violate the timing requirements of the specific bus application.

FAQ

What is the default receiver output state when the bus is idle?

The fail-safe circuitry guarantees a logic-high receiver output when the receiver inputs are open, shorted, or connected to a terminated line with all drivers disabled.

How does the MAX3088E handle ESD events?

All transmitter outputs and receiver inputs are protected to ±15kV using the Human Body Model, providing enhanced robustness against electrostatic discharge.

Is the driver slew rate adjustable on this specific model?

No, the MAX3088E has unrestricted driver slew rates to support speeds up to 10Mbps. Slew-rate limiting is available on other models in the family, such as the MAX3080E or MAX3089E.