ADM208EAN

Overview

The ADM208EAN is a single-supply RS-232 line transceiver from Analog Devices, operating on a 5 V power rail. It integrates four drivers and four receivers for full-duplex communication at data rates up to 230 kbps. The device includes internal charge pumps generating ±9 V swings and provides ±15 kV ESD protection compliant with IEC 1000-4-2 standards. It meets EMC directives (EN 55022) without external suppressors. The component utilizes TTL/CMOS logic levels and is housed in a 24-lead TSSOP package.

Feature Summary

• Complies with EU EMC directive 89/336/EEC for low emissions and high immunity
• Provides robust transient protection against electrostatic discharge and electrical fast bursts
• Operates from a single 5 V supply using internal voltage conversion
• Features Schmitt trigger inputs for noise immunity on receiver channels

Applications

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

Procurement Notes

Verify the specific ordering suffix EAN corresponds to the TSSOP-24 package configuration. Confirm that the component revision matches Rev. E specifications regarding EMC compliance and ESD ratings. Ensure the source documentation explicitly lists the ADM208EAN part number to validate availability and exact pinout alignment.

Selection Notes

Select this component when designing systems requiring four independent RS-232 channels powered by a single 5 V supply. It is suitable for applications needing high ESD tolerance and EMC compliance without additional filtering components. Verify that the required data rate does not exceed 230 kbps and that the physical footprint accommodates the 24-lead TSSOP package dimensions.

Part Context

The ADM208E belongs to the ADM2xxE family of ruggedized RS-232 interface devices. This family serves as a plug-in upgrade for older MAX2xxE products, maintaining backward compatibility while offering enhanced EMC performance. The ADM208E specifically provides four drivers and four receivers, distinguishing it from variants with different channel counts or shutdown capabilities.

Replacement Considerations

The datasheet identifies the ADM208E as a plug-in upgrade for MAX208E devices. Designers replacing legacy parts should verify pin compatibility and ensure the new component's ESD and EMC ratings meet the system requirements.