MAX22501EAUA+T

Overview

The MAX22501EAUA+T is a half-duplex RS-485/RS-422 transceiver optimized for high-speed communication over long cables. It supports data rates up to 100Mbps and operates from a 3V to 5.5V supply voltage. The device features integrated hot-swap protection and fail-safe receivers that guarantee a logic-high output when inputs are shorted or open for longer than 10μs. It lacks the preemphasis circuitry found in the MAX22500E variant. The component is housed in an 8-pin μMAX package with a 0.65mm pin pitch, suitable for surface-mount applications across a -40°C to +125°C temperature range.

Feature Summary

• Integrated hot-swap protection prevents false driver transitions during power-up or board insertion events.
• Fail-safe receiver design ensures a logic-high output state when differential inputs are shorted or open for extended periods.
• High common-mode rejection capability allows operation within a wide ±15V common-mode voltage range.
• Robust ESD protection provides immunity against human body model discharges of ±15kV.

Applications

• Motion Control Systems
• Encoder Interfaces
• Field Bus Networks
• Industrial Control Systems

Procurement Notes

Verify the specific ordering suffix '+T' confirms the reel packaging format required for automated assembly processes. Confirm the 'A' designation aligns with the specified 8-pin μMAX package type rather than the TDFN alternative. Ensure compliance with RoHS standards as indicated by the '+' suffix before finalizing procurement orders.

Selection Notes

Select this part when preemphasis functionality is unnecessary for the specific cable length requirements. Choose the μMAX package for applications requiring through-hole compatibility or specific footprint constraints compared to the TDFN option. Verify that the 3V to 5.5V supply range matches the system power architecture.

Part Context

This component belongs to the MAX2250xE family of high-speed transceivers designed for robust industrial communications. It serves as the non-preemphasis counterpart to the MAX22500E, offering simplified integration for shorter distance applications while maintaining identical protection features and speed capabilities.

Replacement Considerations

The MAX22501EATA+T is a direct functional substitute utilizing a TDFN package instead of μMAX. The MAX22500E series offers similar performance but includes additional preemphasis circuitry for extended cable lengths.