MAX22028AWA+T

Drivers, Receivers, Transceivers Overview

The MAX22028AWA+T is a compact, isolated half-duplex RS-485/RS-422 transceiver featuring Maxim’s proprietary AutoDirection control. It provides 3.5kVRMS of digital galvanic isolation between the UART side and the cable side. The device supports data rates up to 16Mbps with non-slew-rate-limited drivers. It operates on a VDDA supply range of 1.71V to 5.5V and a VDDB supply range of 4.75V to 5.25V. The receiver output always follows the differential voltage (VA-VB). Driver outputs and receiver inputs are protected from ±10kV electrostatic discharge (HBM) to GNDB.

Drivers, Receivers, Transceivers Feature Summary

• AutoDirection control eliminates the need for separate driver-enable and receiver-enable signals by using an internal state machine.
• High-level integration reduces overall solution size within a compact 8-pin wide body SOIC package.
• Integrated protection includes ±10kV ESD tolerance on driver outputs and receiver inputs.
• Receiver output behavior ensures the RXD pin always tracks the differential bus voltage (VA-VB).

Drivers, Receivers, Transceivers Applications

• Utility Meters
• Industrial Automation Equipment
• Programmable Logic Controllers
• HVAC Systems

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'T' indicates reel packaging when sourcing. Confirm RoHS compliance status via official documentation. Ensure the ordering part number matches the exact component requirements for your design specifications.

Drivers, Receivers, Transceivers Selection Notes

Select this model for applications requiring high-speed transmission up to 16Mbps. The non-slew-rate-limited driver distinguishes it from lower-speed variants in the series. Verify that the system design accommodates the required VDDB supply voltage range for proper operation.

Drivers, Receivers, Transceivers Part Context

This component belongs to the MAX22025-MAX22028 family of isolated transceivers. The MAX22028 variant specifically offers maximum data rates of 16Mbps. It shares the same 8-pin wide SOIC package and isolation characteristics as other members of the series.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX22028F is a failsafe variant within the same family. Verify if failsafe receiver functionality is required before substituting.