AD231AR

Overview

The AD231AR is a dual line transceiver manufactured by Analog Devices Inc., designed for RS-232 communication interfaces. It integrates two drivers and two receivers within a single package, supporting the EIA-232-C and V.28 standards. The device operates with Schmitt trigger inputs to ensure noise immunity and provides inverted output polarity. It is housed in a 14-pin Ceramic Dual In-Line Package (CERDIP) with glass-sealed construction, suitable for robust industrial environments.

Feature Summary

• Dual driver and receiver configuration for bidirectional serial data transmission
• Schmitt trigger input characteristics for enhanced noise rejection
• Compliance with EIA-232-C and V.28 interface standards
• Ceramic Dual In-Line Package (CERDIP) construction for durability

Applications

• Industrial control systems requiring reliable serial communication
• Test and measurement equipment interfacing
• Embedded systems utilizing RS-232 protocols
• Harsh environment applications demanding ceramic packaging

Procurement Notes

Verify component authenticity through authorized Analog Devices channels or certified distributors. Confirm that the CERDIP-14 package matches design requirements. Check RoHS compliance status as indicated in official documentation, noting potential restrictions on lead content. Ensure ordering suffixes align with specific temperature grades or packaging variations defined in the datasheet.

Selection Notes

Select this component when a ruggedized, ceramic-packaged RS-232 transceiver is required. The AD231AR is appropriate for designs needing high thermal stability and mechanical robustness compared to plastic packages. Consider the 14-pin DIP footprint for legacy board layouts. Verify voltage levels and signal inversion requirements match the system architecture before integration.

Part Context

This part belongs to the Analog Devices family of analog mixed-signal interface circuits. It serves as a specialized solution for serial communication tasks where reliability and environmental resistance are critical. The device complements other RS-232 transceivers in the portfolio, offering distinct advantages through its ceramic construction and specific electrical characteristics tailored for demanding applications.

Replacement Considerations

Direct replacements include the AD230 and ADM231 series from Analog Devices, which share similar functional descriptions as 5V-powered CMOS RS-232 drivers and receivers. Verify pinout compatibility and package dimensions before substitution. Alternative manufacturers may offer equivalent RS-232 transceivers, but ceramic packaging availability should be confirmed.