LM224ADT

Overview

The LM224ADT is a low-power quad operational amplifier manufactured by STMicroelectronics, housed in a 14-pin SOIC package. It features four independent high-gain amplifiers with internal frequency compensation. Key electrical parameters include a gain-bandwidth product of 1.3 MHz and a slew rate of 400 mV/µs. The device operates on a single supply voltage ranging from 3 V to 30 V or dual supplies from ±1.5 V to ±15 V. Input characteristics include an input bias current of 100 nA and an input offset voltage of 5 mV. Each channel provides an output current of 40 mA, with a common-mode rejection ratio of 80 dB.

Feature Summary

• Low power consumption with supply current drain independent of power supply voltage magnitude
• Input common mode voltage range includes ground potential
• Internal frequency compensation eliminates external component requirements
• Wide operating temperature range suitable for industrial applications

Applications

• Industrial control systems requiring multi-channel signal processing
• Transducer amplification for sensor interface circuits
• DC gain blocks in measurement instrumentation
• Build-in test equipment signal conditioning

Procurement Notes

Verify the specific suffix 'ADT' against the manufacturer's official datasheet to confirm the exact package variant and tape-and-reel specifications. Ensure the procurement source provides documentation confirming RoHS compliance status as defined in the latest STMicroelectronics release notes. Cross-reference the ordering part number with authorized distributors to validate authenticity and traceability before finalizing orders.

Selection Notes

Select this component when designing circuits that require multiple operational amplifiers within a single integrated circuit footprint. The LM224ADT is appropriate for applications demanding low quiescent current operation without sacrificing basic bandwidth performance. Consider the 14-SOIC package dimensions during PCB layout planning to ensure adequate thermal dissipation and mechanical clearance for surface-mount assembly processes.

Part Context

This component belongs to the LM224x series of low-power quad operational amplifiers produced by STMicroelectronics. The series shares architectural similarities with the LM124 and LM324 families but offers specific performance optimizations for industrial environments. The 'A' designation typically indicates improved parameter tolerances compared to standard variants, while the 'DT' suffix denotes the specific surface-mount packaging configuration used for automated assembly.

Replacement Considerations

Publicly confirmed substitute part numbers include LM224DR and LM224DT. Verify pin compatibility and electrical parameter alignment with the original design requirements before implementing these alternatives.