ADM230LJN

Overview

The ADM230LJN is a dual-channel RS-232 transceiver manufactured by Analog Devices Inc. It operates from a single 5 V supply and integrates charge pumps to generate the required positive and negative voltages for RS-232 signal levels, eliminating the need for external split supplies. The device features two drivers and two receivers, providing full compliance with EIA/TIA-232-F and ITU-T V.28/V.10 specifications. It utilizes CMOS technology to achieve low power consumption while maintaining high-speed data transmission capabilities up to 120 kbps. The component is housed in a 16-lead narrow SOIC package.

Feature Summary

• Integrated charge pump circuitry generates internal supply rails without requiring external dual voltage sources
• CMOS architecture ensures low current consumption suitable for battery-powered or energy-efficient systems
• Full compatibility with standard RS-232 protocols including EIA/TIA-232-F and V.28/V.10 electrical standards

Applications

• Industrial control systems requiring serial communication interfaces
• Portable instrumentation and data acquisition equipment
• Modem and telecommunications interface circuits

Procurement Notes

Verify the specific suffix 'LJN' corresponds to the lead-free, RoHS-compliant variant in the official Analog Devices datasheet. Confirm the package type matches the 16-lead narrow SOIC footprint required for your PCB layout. Ensure the operating temperature range specified in the procurement documentation aligns with your system's environmental constraints before finalizing orders.

Selection Notes

Select this component when a single 5 V supply is available and external inductors or transformers are undesirable due to space or cost constraints. It is appropriate for applications needing moderate data rates up to 120 kbps. Consider alternative models if higher noise immunity or extended temperature ranges beyond standard commercial limits are required.

Part Context

This part belongs to the ADM2xx series of RS-232 transceivers from Analog Devices. These devices are designed to replace older bipolar-based transceivers by offering lower power consumption and simplified peripheral requirements. The series supports various package options to accommodate different board density and thermal management needs.

Replacement Considerations

Direct pin-compatible replacements within the same family include the ADM230ARNZ or ADM230JRZ, provided they meet the specific temperature and packaging requirements. Verify that any substitute maintains the same 120 kbps speed rating and 5 V operation.