ADM206ARZ

Overview

The ADM206ARZ is a CMOS RS-232 line driver and receiver manufactured by Analog Devices. It operates from a single +5 V power supply, utilizing internal charge pumps to generate the required ±10 V levels for EIA-232-E compliance. The device integrates four drivers and three receivers with full-duplex communication capability. It supports data rates up to 120 kB/s and features a low-power shutdown mode consuming less than 5 μW. The input logic thresholds are compatible with both TTL and CMOS standards. The component is housed in a 24-lead SOIC package and functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates on-board DC-to-DC converters to generate ±10 V supplies from a single 5 V source
• Features a low-power shutdown mode that reduces power dissipation to under 5 μW
• Includes Schmitt-trigger inputs with hysteresis for noise immunity
• Provides high impedance receiver outputs when disabled via the enable pin

Applications

• Battery-powered equipment requiring low standby power
• Computers and peripheral interface connections
• Modems and printers utilizing standard RS-232 protocols
• Instruments sharing common data lines or microprocessor buses

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and RoHS compliance status. Ensure the procurement channel sources directly from authorized distributors to guarantee authenticity. Confirm that the delivered components match the specified 24-lead SOIC form factor and industrial temperature rating prior to integration into the design.

Selection Notes

Select this component when designing systems that require RS-232 communication without access to negative voltage rails. The integrated charge pump eliminates the need for external dual-supply generation. Consider the shutdown functionality for battery-operated applications where minimizing quiescent current is critical. Verify that the required number of drivers and receivers aligns with the system architecture before finalizing the part choice.

Part Context

The ADM206ARZ belongs to the ADM2xx family of RS-232 transceivers designed for single-supply operation. This family includes variants such as the ADM207, ADM208, ADM211, and ADM213, which offer different combinations of drivers and receivers. The ADM206 specifically provides four drivers and three receivers, distinguishing it from other members of the series that may include additional channels or distinct control pin configurations.

Replacement Considerations

The datasheet indicates that the ADM2xx family is essentially plug-in compatible with the older AD2xx family derivatives. Designers should verify pin compatibility and electrical specifications when substituting these legacy parts. No other specific replacement part numbers are documented in the provided source material.