ADM209ARSZ

Overview

The ADM209ARSZ is a CMOS RS-232 transceiver manufactured by Analog Devices Inc., designed for +5V operation. It integrates four drivers and five receivers within a single package, supporting data rates up to 120 kbps. The device utilizes an external charge pump architecture requiring only two capacitors for voltage generation, eliminating the need for internal DC-to-DC converters. It complies with EIA/TIA-232-F and V.28 standards, featuring Schmitt trigger inputs on receivers for noise immunity. The component is housed in a 28-pin SOIC Wide (SOIC-W) package.

Feature Summary

• Integrated charge pump circuitry enabling operation with minimal external capacitance
• High noise immunity provided by Schmitt trigger receiver inputs
• Compliance with standard RS-232 electrical specifications for reliable communication
• CMOS technology ensuring low power consumption during active and shutdown modes

Applications

• Industrial control systems requiring robust serial communication interfaces
• Modem interfacing in embedded computing environments
• Data acquisition systems utilizing RS-232 connectivity
• Point-of-sale terminals and barcode scanners

Procurement Notes

Verify the specific suffix 'AR' corresponds to the required temperature range and packaging format for your design. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the 28-pin SOIC-W footprint matches your PCB layout constraints. Cross-reference the datasheet revision to confirm pinout consistency with existing designs.

Selection Notes

Select this component when a high channel count of four drivers and five receivers is necessary within a single IC. It is suitable for applications demanding low power consumption from a single +5V supply. Consider this part for designs where minimizing external passive components is critical due to space constraints. Evaluate the 120 kbps speed limit against system requirements before finalizing the selection.

Part Context

The ADM209 belongs to the ADM2xx series of RS-232 transceivers from Analog Devices. This family is characterized by CMOS compatibility and low power operation. The ADM209 specifically offers a higher channel density compared to standard dual-driver variants, making it distinct within the portfolio for complex serial interface applications.

Replacement Considerations

The ADM213ARZ serves as a functional alternative within the same series, offering similar driver/receiver counts but with enhanced shutdown features. Verify pin compatibility and electrical parameter alignment before substituting. Consult official Analog Devices documentation for detailed cross-reference information.