ADM202EARWZ

Overview

The ADM202EARWZ is a dual-channel RS-232 line driver and receiver manufactured by Analog Devices Inc. It operates from a single 5 V power supply (4.5 V to 5.5 V) with a typical quiescent current of 6 mA under no-load conditions. The device supports data rates up to 230 kbps and provides ±15 kV ESD protection on all I/O lines, compliant with IEC1000-4-2 standards. It features Schmitt-trigger inputs for noise immunity and includes internal pull-down resistors on receiver inputs. The component is housed in a 16-lead Wide SOIC package.

Feature Summary

• Compliant with EU EMC directive 89/336/EEC for electromagnetic compatibility
• Integrated charge-pump voltage converter eliminates need for external negative supply
• Robust transient protection against electrostatic discharge and electrical fast transients
• Controlled slew rate minimizes radiated electromagnetic interference emissions

Applications

• General-purpose RS-232 data links
• Portable instruments requiring low power consumption
• Personal Digital Assistants (PDAs)
• Industrial equipment operating in electrically harsh environments

Procurement Notes

Verify the specific ordering suffix to confirm the package type and temperature range. The 'RW' suffix indicates a Wide SOIC package. Ensure the procurement matches the required industrial temperature specifications and that the component source aligns with official manufacturer distribution channels to guarantee authenticity.

Selection Notes

Select this component when upgrading legacy MAX202E or ADM232 designs requiring enhanced ESD protection and lower power consumption. It serves as a pin-compatible replacement for older generation transceivers. Consider the Wide SOIC footprint constraints and verify that the application environment necessitates the specified ±15 kV ESD tolerance levels.

Part Context

The ADM202E belongs to the ADM202 family of robust RS-232 interface devices. It functions as an enhancement to the ADM230–ADM241 series, offering improved electromagnetic immunity and reduced power dissipation compared to predecessors. The device integrates CMOS technology to optimize battery life in portable applications while maintaining full compliance with EIA-232-E specifications.

Replacement Considerations

The ADM202E is designed as a direct pin-compatible upgrade for MAX202E, MAX232E, ADM202, and ADM232L devices. Verify that the existing circuit board layout accommodates the Wide SOIC dimensions if replacing narrow SOIC variants.