ADM211ARZ-REEL

Overview

The ADM211ARZ-REEL is a CMOS RS-232 transceiver from Analog Devices, designed for EIA-232-E and V.28 interfaces using a single +5V supply. It integrates four drivers and five receivers with on-board DC-to-DC converters generating ±10V levels. Key parameters include a 120 kB/s data rate, ±9V output swing, and 13 mA typical supply current. The device features low power shutdown (≤5 μW) and an active-low enable input. It operates within the industrial temperature range of -40°C to +85°C and utilizes a 28-lead SOIC_W package.

Feature Summary

• Integrates internal charge pump voltage converters to generate required RS-232 voltages from a single 5V supply
• Features low power shutdown mode that reduces power dissipation to less than 5 μW
• Includes Schmitt-trigger receiver inputs with hysteresis for noise immunity
• Provides TTL/CMOS compatible inputs with internal pull-up resistors

Applications

• Battery-powered equipment requiring low standby power
• Modems and printers utilizing standard serial communication
• Instruments and peripherals interfacing via RS-232
• Microprocessor systems sharing common data lines

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and RoHS compliance status. Ensure the procurement channel provides valid traceability for the component batch. Confirm that the received parts match the specified 28-lead SOIC_W form factor and industrial temperature rating requirements.

Selection Notes

Select this component when designing systems requiring multiple transmitter and receiver channels on a single chip without access to dual polarity supplies. The integrated charge pumps eliminate external components typically needed for level shifting. Consider the low power shutdown capability if battery life is a critical design constraint for the target application.

Part Context

This part belongs to the ADM2xx family of line drivers and receivers developed by Analog Devices. The series addresses interface problems in applications where traditional ±12V supplies are unavailable. The ADM211 variant specifically offers a configuration optimized for systems needing five receiver inputs alongside four driver outputs.

Replacement Considerations

The datasheet indicates pin compatibility with the MAX206 through MAX213 series. Verify electrical specifications and control logic polarities before substituting these alternatives.