MAX14841EATA+T

Drivers, Receivers, Transceivers Overview

The MAX14841EATA+T is a +3.3V RS-485 transceiver designed for half-duplex communication at data rates up to 40Mbps. It features true fail-safe receiver inputs that guarantee a logic-high output when the differential inputs are shorted or open. The device operates within a supply voltage range of 3.0V to 3.6V and supports an ambient temperature range from -40°C to +125°C. It incorporates ±35kV Human Body Model ESD protection on the A and B pins, along with hot-swap capability to prevent false transitions during power-up. Typical supply current is 1.5mA, reducing to a maximum of 10µA in shutdown mode.

Drivers, Receivers, Transceivers Feature Summary

• True fail-safe receiver input guarantees a logic-high state when inputs are shorted or open
• Hot-swap capability prevents false bus transitions during board insertion or power-up sequences
• High electrostatic discharge protection rated at ±35kV HBM on driver outputs and receiver inputs
• Thermal self-protection shuts down the driver if junction temperature exceeds 160°C

Drivers, Receivers, Transceivers Applications

• Motion Controllers
• Fieldbus Networks
• Industrial Control Systems
• Backplane Buses
• HVAC Networks

Drivers, Receivers, Transceivers Procurement Notes

Verify the component authenticity by checking the manufacturer's marking against official datasheet specifications. Confirm the package type matches the TDFN-EP designation and ensure the ordering suffix corresponds to the lead-free RoHS-compliant variant. Cross-reference the part number with authorized distributor catalogs to validate availability and sourcing channels.

Drivers, Receivers, Transceivers Selection Notes

Select this model over the MAX14840E when a guaranteed logic-high receiver output is required under fault conditions such as open or shorted lines. Ensure the application environment requires operation up to 40Mbps and utilizes a 3.3V power supply. Verify that the system benefits from the specific thermal and ESD protection characteristics provided by the MAX14841E family.

Drivers, Receivers, Transceivers Part Context

This component belongs to the MAX14840E/MAX14841E series of high-speed RS-485 transceivers manufactured by Analog Devices Inc./Maxim Integrated. The series offers symmetrical and true fail-safe options to address different noise immunity requirements in industrial environments. Both variants share identical electrical characteristics except for the receiver threshold behavior under fault conditions.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX14840EATA+T serves as a functional alternative within the same series, differing primarily in its symmetrical fail-safe receiver design rather than true fail-safe. Designers must evaluate whether the specific logic-high guarantee upon input shorts is necessary for their network topology before substituting.