ADM211EARU

Overview

The ADM211EARU is a robust RS-232 line transceiver from the ADM2xxE family, manufactured by Analog Devices Inc. It operates on a single 5 V power supply and features four drivers and five receivers with full-duplex communication capability. The device supports data rates up to 230 kbps and includes integrated shutdown and enable control pins for power management. It provides ±15 kV ESD protection on all I/O lines and complies with EMC directives. The component utilizes an internal charge pump requiring only four external 0.1 μF capacitors and is housed in a 28-lead TSSOP package.

Feature Summary

• Complies with EU EMC directive (89/336/EEC) with low EMI emissions and high immunity to fast transient bursts.
• Provides robust electrostatic discharge protection of ±15 kV on all input and output lines.
• Features dedicated shutdown and enable pins to minimize quiescent current consumption during idle states.
• Operates from a single 5 V supply using an internal charge pump with minimal external capacitor requirements.

Applications

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

Procurement Notes

Verify that the ordering suffix 'RU' corresponds to the 28-lead TSSOP package as specified in the manufacturer's documentation. Confirm RoHS compliance status through official Analog Devices channels or authorized distributors, as environmental declarations may vary by production batch. Ensure the specific revision level matches the design requirements before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring four drivers and five receivers within a single interface IC. The inclusion of both shutdown and enable controls makes it suitable for applications needing precise power management and bus isolation. Verify that the operating temperature range of -40°C to +85°C meets the environmental constraints of the target application.

Part Context

The ADM211E belongs to the ADM2xxE series of ruggedized RS-232 transceivers designed for harsh electrical environments. This family offers backward compatibility with earlier ADM2xx products, facilitating easy upgrades. The ADM211E specifically distinguishes itself by providing five receiver outputs alongside four drivers, offering greater flexibility for complex peripheral connections compared to standard quad-driver variants.

Replacement Considerations

The ADM211E is described as plug-in compatible with older ADM2xx designs. Direct replacements should be verified against the manufacturer's selection guide to ensure pinout and functional equivalence. Consider the ADM213E if two active receivers are required during shutdown mode instead of complete tristating.