AD241AR

Overview

The AD241AR is a 5 V powered CMOS RS-232 transceiver manufactured by Analog Devices. It integrates drivers and receivers for full RS-232 communication, supporting data rates up to 120 kbps. The device operates within a supply voltage range of 4.5 V to 5.5 V and features a receiver hysteresis of 500 mV to improve noise immunity. Designed for surface-mount installation, it is available in a 28-pin SSOP package with dimensions of 0.209 inches (5.30 mm) width. The component supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Integrates four drivers and five receivers for complete RS-232 interface functionality
• CMOS technology ensures low power consumption while maintaining 5 V compatibility
• Receiver hysteresis of 500 mV enhances signal integrity in noisy environments

Applications

• Industrial control systems requiring serial communication
• Test and measurement equipment interfaces
• Embedded systems with RS-232 connectivity needs

Procurement Notes

Verify current availability status as the part may be discontinued or subject to supply limitations. Confirm RoHS compliance and REACH status prior to integration. Check for moisture sensitivity level (MSL 1) requirements during storage and handling. Ensure the 28-SSOP footprint matches the design layout. Consult official Analog Devices documentation for final qualification.

Selection Notes

Select this component when a fully integrated RS-232 solution is required for 5 V logic systems. The 28-pin SSOP package suits space-constrained designs needing multiple driver/receiver channels. Consider the 120 kbps speed limit for application timing constraints. Verify thermal performance within the -40°C to +85°C range for the specific environment.

Part Context

The AD241AR belongs to the family of 5 V powered CMOS RS-232 drivers and receivers produced by Analog Devices. It serves as a legacy interface solution for serial data transfer in industrial and commercial applications. The device provides a compact alternative to discrete transistor-based RS-232 circuits, simplifying board design and reducing component count.

Replacement Considerations

Publicly confirmed substitutes include other 5 V CMOS RS-232 transceivers from Analog Devices such as the AD241 series variants. Cross-reference pinouts and electrical specifications carefully when evaluating alternatives from other manufacturers like Maxim Integrated.