ADM206ARSZ

Overview

The ADM206ARSZ is a CMOS RS-232 transceiver from Analog Devices, designed for EIA-232-E and V.28 interfaces using a single 5 V supply. It integrates four drivers and three receivers with internal charge pump voltage converters generating ±10 V rails. The device supports data rates up to 120 kB/s and features a low power shutdown mode consuming less than 5 μW. It operates within an industrial temperature range of -40°C to +85°C and includes Schmitt-trigger inputs with 0.65 V hysteresis for noise immunity.

Feature Summary

• Integrates dual charge pump DC-to-DC converters to generate required RS-232 voltages from a single 5 V digital supply.
• Features a low power shutdown control input that disables the charge pump and outputs to minimize energy consumption.
• Includes receiver enable functionality allowing outputs to enter a high impedance state for microprocessor bus sharing.
• Provides robust signal integrity through Schmitt-trigger receiver inputs with built-in hysteresis.

Applications

• Battery-powered equipment requiring minimal standby power
• Computers and peripheral interface connections
• Modems and printers utilizing standard serial communication
• Instruments and test equipment needing reliable RS-232 signaling

Procurement Notes

Verify the specific package variant matches the design requirements, as the ADM206 family is available in multiple form factors including SSOP and SOIC. Confirm RoHS compliance status if environmental regulations apply to the final assembly. Ensure the ordering suffix corresponds to the desired reel or tube packaging configuration for manufacturing integration.

Selection Notes

Select the ADM206ARSZ when four drivers and three receivers are sufficient for the application architecture. Consider alternative models like the ADM213 if two additional receivers must remain active during shutdown for ring indicator monitoring. Verify that the external capacitor values align with the desired trade-off between output impedance and ripple performance.

Part Context

This component belongs to the ADM2xx family of line drivers and receivers, which serves as an enhancement over the legacy AD2xx series. These parts are pin-compatible with MAX206-211/213 derivatives, facilitating direct replacement in existing designs. The family addresses the need for RS-232 communication without requiring negative voltage supplies.

Replacement Considerations

The ADM206ARZ is a verified RoHS-compliant substitute for the non-Z version. Cross-model replacements include the ADM211ARSZ for applications requiring five receivers instead of three. Ensure pinout compatibility is maintained when substituting with other members of the ADM2xx family.