MAX252ACHL

Overview

The MAX252ACHL is a complete, +5V-powered, isolated dual RS-232 transceiver module manufactured by Analog Devices Inc./Maxim Integrated. Designed for robust serial communication, this component integrates drivers and receivers within a single DIP-40 plastic module package. It provides galvanic isolation to protect sensitive electronics from ground loops and high-voltage transients common in industrial environments. The module operates on a single +5V supply, simplifying power design requirements while maintaining compatibility with standard RS-232 voltage levels.

Feature Summary

• Integrated isolation barrier for enhanced noise immunity
• Single +5V power supply operation
• Dual channel capability for simultaneous transmit and receive

Applications

• Industrial control systems requiring isolated serial links
• Data acquisition modules needing ground loop protection
• Telecommunications equipment interfaces

Procurement Notes

Verify the specific suffix (CHL) against current Analog Devices catalogs to confirm availability and lead times. Ensure the procurement source is an authorized distributor to guarantee authenticity. Check for RoHS compliance status if required by local regulations. Confirm that the DIP-40 module form factor matches the target PCB footprint constraints before ordering.

Selection Notes

Select this module when both RS-232 signal conversion and electrical isolation are required in a compact form factor. It serves as a drop-in replacement for discrete transceiver designs where board space is limited. Consider the thermal characteristics of the plastic module housing during system integration. Verify that the operating temperature range meets the environmental conditions of the deployment site.

Part Context

This component belongs to the Maxim Integrated line of interface solutions, now part of Analog Devices following the 2021 acquisition. The MAX252 series represents a legacy product line focused on reliable serial communication in harsh environments. While newer integrated transceivers exist, this module offers a proven solution for applications prioritizing isolation over miniaturization.