ADM211AR-REEL

Overview

The ADM211AR-REEL is a CMOS RS-232 transceiver from the ADM2xx family, designed for EIA-232-E and V.28 interfaces using a single 5 V supply. It integrates four drivers and five receivers with internal charge pumps generating ±10 V rails. The device supports data rates up to 120 kB/s and features low power shutdown mode consuming less than 5 μW. It includes an active-low enable input for receiver control and operates within an industrial temperature range of -40°C to +85°C in a 28-lead SOIC package.

Feature Summary

• Integrates dual charge pump voltage converters to generate required RS-232 levels from a single 5 V supply
• Features low power shutdown mode that reduces power dissipation to under 5 μW for battery applications
• Includes active-low enable input allowing receiver outputs to enter high impedance state for bus sharing
• Provides Schmitt-trigger inputs on receivers to ensure noise immunity and error-free reception

Applications

• Battery-powered equipment requiring low standby power
• Modems and printers utilizing standard serial communication
• Computer peripherals connecting via RS-232 interfaces
• Instruments needing isolated TTL/CMOS to RS-232 translation

Procurement Notes

Verify the specific ordering suffix matches the required packaging format. The REEL suffix indicates tape and reel packaging suitable for automated assembly processes. Confirm RoHS compliance status if environmental regulations apply to the final product design. Ensure the industrial temperature grade meets operational requirements.

Selection Notes

Select this component when four drivers and five receivers are required in a single package. The ADM211 differs from the ADM206 by providing five receivers instead of three. Choose this part over the ADM213 if active-high receiver enable logic is preferred rather than active-low shutdown with dedicated ring indicator monitoring capabilities.

Part Context

This component belongs to the ADM2xx series of 0.1 μF powered CMOS RS-232 drivers and receivers. It serves as a direct replacement for older AD2xx derivatives while offering improved power efficiency. The ADM211 variant specifically addresses applications requiring multiple receive lines compared to the three-receiver ADM206 configuration.

Replacement Considerations

ADM211ARZ-REEL offers identical electrical specifications with RoHS compliant construction. ADM206 variants provide similar functionality but include only three receivers instead of five.