AD231AN

Overview

The AD231AN is a dual line transceiver designed for RS-232 communication, manufactured by Analog Devices Inc. It operates on a single 5 V supply and integrates Schmitt trigger inputs to ensure noise immunity. The device features two drivers and two receivers within a 14-pin ceramic dual in-line package (CDIP). It complies with EIA-232-C and V.28 standards, supporting data rates up to 120 kbps. The unit functions reliably across an extended industrial temperature range of -55 °C to +125 °C.

Feature Summary

• Single 5 V power supply operation
• Schmitt trigger inputs for enhanced noise rejection
• Compliance with EIA-232-C interface standards
• Extended industrial temperature rating

Applications

• Industrial control systems requiring robust serial communication
• Military and aerospace instrumentation interfaces
• Harsh environment data acquisition modules
• Legacy equipment interfacing via RS-232 ports

Procurement Notes

Verify the specific suffix 'AN' against official Analog Devices documentation to confirm the exact package variant and material composition. Ensure compliance requirements are met, as this component may not be RoHS compliant. Confirm availability through authorized distributors, noting that ceramic DIP packages often have longer lifecycle support than plastic equivalents.

Selection Notes

Select the AD231AN when high reliability in extreme temperatures is required, specifically below -40 °C or above +85 °C. The ceramic package offers superior hermetic sealing compared to plastic alternatives. Consider this part for applications where long-term stability and resistance to environmental stressors are critical design constraints.

Part Context

This component belongs to the Analog Devices family of RS-232 line drivers and receivers. It serves as a bridge between CMOS logic levels and RS-232 voltage swings. The AD231 series provides a cost-effective solution for point-to-point serial communication links in demanding environments where standard plastic-packaged ICs might fail due to thermal or mechanical stress.