MAX22508EASA+T

Overview

The MAX22508EASA+T is a full-duplex RS-485/RS-422 transceiver optimized for high-speed communication up to 50Mbps. It operates within a supply voltage range of 3V to 5.5V and features integrated hot-swap protection and fail-safe receivers that ensure a logic-high output when inputs are shorted or open for longer than 10μs. The device includes large receiver hysteresis for improved noise rejection, ±15kV ESD protection (HBM), and withstands over ±4kV EFT. It is housed in an 8-pin SOIC package and supports operation from -40°C to +125°C.

Feature Summary

• Integrated hot-swap protection prevents false driver transitions during power-up or hot-plug events.
• Fail-safe receiver guarantees a logic-high output when differential inputs are shorted or open for extended periods.
• High robustness against electromagnetic interference with ±15kV ESD protection and high EFT immunity.

Applications

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

Procurement Notes

Verify the component matches the exact part number MAX22508EASA+T. Confirm the 'T' suffix indicates tape and reel packaging as specified in the official documentation. Ensure the manufacturer is Analog Devices Inc./Maxim Integrated and check RoHS compliance status through the '+'. Cross-reference datasheet specifications against received samples to validate authenticity.

Selection Notes

Select this component for applications requiring full-duplex RS-485/RS-422 communication at speeds up to 50Mbps. It is suitable for harsh industrial environments due to its wide operating temperature range and high ESD/EFT immunity. Choose this variant over the MAX22507E if an 8-pin SOIC package is preferred over a 10-pin μMAX package and low-power shutdown functionality is not required.

Part Context

This component belongs to the MAX22507E/MAX22508E series of high-speed, ESD-protected transceivers. The MAX22508E specifically utilizes an 8-pin SOIC package, whereas the MAX22507E uses a 10-pin μMAX package. Both share identical electrical characteristics and performance metrics, differing primarily in physical footprint and pin count.

Replacement Considerations

The MAX22508EASA+ is the non-tape-and-reel equivalent of this part. For alternative packages, consider the MAX22507E series, which offers identical electrical performance but in a 10-pin μMAX format. Verify pinout compatibility before substituting with other RS-485 transceivers.