LM224DR

Overview

The LM224DR is a quad operational amplifier manufactured by UMW. It consists of four independent, high-gain operational amplifiers with internal frequency compensation. The device supports single-supply operation over a wide voltage range and can also function with split power supplies. Key electrical characteristics include a gain-bandwidth product of 1.3 MHz, an input common-mode voltage range that includes ground, and a large voltage gain of 100 dB. Supply current drain per amplifier is low at 375 µA, with an input bias current of 20 nA and a maximum input offset voltage of 3 mV.

Feature Summary

• Contains four independent high-gain operational amplifiers with internal frequency compensation
• Operates from a single power supply over a wide voltage range
• Input common-mode voltage range includes ground potential
• Low-power supply current drain independent of power supply voltage magnitude

Applications

• General-purpose analog signal processing circuits
• DC gain blocks requiring single-supply operation
• Transducer amplification interfaces
• Voltage comparators in low-frequency applications

Procurement Notes

Verify the manufacturer marking on the component body to confirm UWM origin, as the LM224 part number is widely produced by multiple vendors including Texas Instruments and STMicroelectronics. Ensure the suffix DR corresponds to the specific tape-and-reel packaging format required for your assembly line. Cross-reference the date code and lot number against the supplier's certificate of conformity to ensure authenticity and traceability.

Selection Notes

Select this component when a quad op-amp configuration is required within a single package to save board space. It is suitable for applications where low power consumption is critical but high-speed performance is not the primary constraint. Consider the input offset voltage and bias current specifications if precision DC amplification is needed. Verify that the operating temperature range meets the environmental requirements of the final system.

Part Context

The LM224 series belongs to a family of low-power quad operational amplifiers that also includes the LM124 and LM324 variants. These devices are designed for versatile use in consumer electronics, industrial controls, and telecommunications equipment. The DR suffix typically denotes a surface-mount SOIC-14 package variant, facilitating automated placement in modern PCB manufacturing processes.

Replacement Considerations

Direct pin-compatible substitutes include the LM324DR and LM124DR from various manufacturers. Other quad op-amps such as the TL084 or NE5532 may serve as functional replacements in AC-coupled applications, though their power consumption and input characteristics differ significantly.