ADM211ARS-REEL

Overview

The ADM211ARS-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 on-board DC-to-DC converters generating ±10 V levels. 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 tri-stating and operates within a temperature range of -40°C to +85°C in a 28-lead SSOP package.

Feature Summary

• Integrates internal charge pump voltage converters to generate required RS-232 voltages 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 to place receiver outputs in high impedance state for bus sharing
• Provides Schmitt-trigger inputs with hysteresis to ensure error-free reception in noisy environments

Applications

• Battery-powered equipment requiring low standby power
• Microprocessor systems utilizing shared data buses
• EIA-232-E communication interface circuits
• Peripherals and modems operating on single 5 V logic supplies

Procurement Notes

Verify the specific ordering suffix matches the required package type and RoHS compliance status. Confirm the reel quantity aligns with manufacturing requirements. Ensure the component version corresponds to the latest Analog Devices datasheet revision to guarantee parameter accuracy and availability.

Selection Notes

Select this part when four drivers and five receivers are needed within a single IC. Choose the ADM211 over the ADM206 if additional receiver channels are required. Consider the ADM213 variant if two receivers must remain active during shutdown for ring indicator monitoring. Verify thermal constraints for the SSOP package option.

Part Context

This component belongs to the ADM2xx series of line drivers and receivers. It serves as a direct upgrade to older MAX205-211/213 devices. The ADM211 specifically provides a higher receiver count compared to the ADM206 while maintaining similar driver counts and control features within the same functional family.

Replacement Considerations

The ADM211ARZ-REEL is the RoHS-compliant equivalent. The ADM206 offers identical functionality but with only three receivers. The ADM213 provides similar features but keeps two receivers active during shutdown.