AD238JN

Overview

The AD238JN is a CMOS RS-232 line transceiver manufactured by Analog Devices Inc. It integrates four drivers and four receivers, designed for EIA-232-C and V.28/V.24 communication interfaces. The device operates on a single +5 V power supply and features Schmitt trigger inputs for noise immunity. It supports full-duplex data transmission with inverted output polarity. The component is housed in a 24-pin DIP package and is rated for an operating temperature range of -40 °C to +85 °C.

Feature Summary

• Integrates four independent drivers and four receivers for multi-channel serial communication
• Utilizes CMOS technology for low power consumption while maintaining compatibility with standard RS-232 levels
• Incorporates Schmitt trigger inputs to enhance noise rejection on receiver lines
• Operates from a single +5 V supply without requiring external negative voltage generation

Applications

• Industrial control systems requiring robust serial communication links
• Medical equipment utilizing EIA-232-C compliant interfaces
• GPS navigation devices needing reliable data transmission
• Point-of-sale (POS) terminals with serial peripheral connections

Procurement Notes

Verify the specific suffix 'JN' against official Analog Devices documentation to confirm package type and temperature grade. Ensure compliance with relevant interface standards such as EIA-232-C. Check for RoHS status and lead-free availability if required by project specifications. Confirm pinout compatibility with existing PCB layouts before integration.

Selection Notes

Select this component when designing systems that require multiple RS-232 channels within a single integrated circuit. It is suitable for applications demanding low power operation from a single 5V rail. Consider the DIP packaging constraints for through-hole assembly processes. Evaluate thermal performance within the specified -40 °C to +85 °C range for environmental suitability.

Part Context

The AD238 series belongs to Analog Devices' portfolio of analog mixed-signal interface components. These devices are engineered to facilitate data exchange between microprocessors and serial peripherals. The AD238JN specifically addresses the need for compact, high-density RS-232 solutions in space-constrained electronic designs.

Replacement Considerations

Consult official manufacturer substitution guides for verified equivalents. Ensure any replacement maintains identical driver/receiver counts and voltage requirements. Verify pin-to-pin compatibility to avoid redesigning the host circuit board.