ADM207EAR

Overview

The ADM207EAR is a robust RS-232 line transceiver from Analog Devices, operating on a single 5 V supply. It integrates five drivers and three receivers with guaranteed data rates up to 230 kbps. The device features ±15 kV ESD protection compliant with IEC 1000-4-2 standards and low EMI emissions meeting EN 55022 requirements. It utilizes an internal charge pump requiring only four 0.1 μF external capacitors. Available in 24-lead packages including SOIC and TSSOP, it serves as a plug-in upgrade for legacy MAX2xxE designs.

Feature Summary

• Complies with the EU EMC directive (89/336/EEC) for both emissions and immunity.
• Provides high-level electrostatic discharge protection on all I/O lines.
• Eliminates the need for external TransZorb suppressors through integrated clamping structures.
• Offers backward compatibility with earlier ADM2xx product families.

Applications

• Laptop computers
• Notebook computers
• Printers
• Peripherals
• Modems

Procurement Notes

Verify the specific package suffix against the ordering guide, as the base model supports multiple form factors. Confirm RoHS compliance status for the exact part number variant. Check current availability as this component may be discontinued or subject to obsolescence notices. Ensure the selected package matches the PCB footprint requirements for the target design.

Selection Notes

Select the ADM207EAR when five driver channels and three receiver channels are required. Choose this component for applications needing high ESD immunity without external protection diodes. Consider this part for space-constrained designs utilizing the available TSSOP package option. Verify that the single 5 V supply voltage aligns with the system power architecture.

Part Context

The ADM207EAR belongs to the ADM2xxE family of ruggedized RS-232 interface devices. This series is designed for harsh electrical environments and offers enhanced electromagnetic compatibility compared to previous generations. The E-series designation indicates improved ESD and EFT performance while maintaining pinout compatibility with older ADM2xx components.

Replacement Considerations

Public confirmed substitute part numbers include ADM207EARUZ. Other similar devices mentioned in distributor listings include MAX207 variants from Texas Instruments, though direct functional equivalence should be verified against the datasheet specifications.