ADM211EAR

Overview

The ADM211EAR is a quad RS-232 transceiver from the ADM2xxE family, designed for single 5 V operation. It provides four drivers and five receivers with a guaranteed data rate of 230 kbps. The device features ±15 kV ESD protection on all I/O lines and complies with EMC directives. It includes shutdown and enable control pins to minimize power consumption. Operating voltage ranges from 4.5 V to 5.5 V, with a typical supply current of 13 mA. In shutdown mode, current drops to 1 μW. The component utilizes internal charge pumps requiring four external 0.1 μF capacitors.

Feature Summary

• Complies with EU EMC directive (89/336/EEC) for low emissions and high immunity.
• Provides robust ESD protection up to ±15 kV on all input/output lines.
• Features dedicated shutdown and enable control pins for power management.
• Eliminates the need for external TransZorb suppressors through integrated protection.

Applications

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

Procurement Notes

Verify the specific package suffix against the ordering guide to ensure correct physical dimensions and pinout compatibility. Confirm RoHS compliance status as manufacturing revisions may affect certification. Check for active lifecycle status or obsolescence notices before finalizing procurement plans.

Selection Notes

Select this model when five receiver inputs are required alongside four drivers in a single package. Compare with the ADM213E if partial shutdown functionality is needed to keep specific receivers active. Ensure the application environment meets the specified operating temperature range of -40°C to +85°C.

Part Context

This component belongs to the ADM2xxE series, which offers enhanced EMI/EMC performance compared to earlier generations. It serves as a plug-in upgrade for older MAX2xxE designs while maintaining backward compatibility. The family shares similar internal circuitry but varies in driver/receiver counts and control logic configurations.

Replacement Considerations

The ADM213E is a functional alternative within the same family, offering different shutdown behavior where two receivers remain active. Verify pin-to-pin compatibility and control signal polarity differences between the EN and SHDN pins before substitution.