LM224PT

Overview

The LM224PT is a low-power quad operational amplifier manufactured by STMicroelectronics, featuring four independent high-gain amplifiers with internal frequency compensation. It operates from a single power supply ranging from 3 V to 30 V or split supplies of ±1.5 V to ±15 V. Key electrical parameters include a gain-bandwidth product of 1.3 MHz, a large voltage gain of 100 dB, and an input common mode voltage range that includes ground. The device exhibits very low supply current drain of 375 µA per amplifier, which remains independent of the power supply voltage magnitude. Additional specifications include a low input bias current of 20 nA, a maximum input offset voltage of 3 mV, and a low input offset current of 2 nA.

Feature Summary

• Four independent high-gain operational amplifiers with internal frequency compensation
• Operates from wide single or split power supply ranges
• Input common mode voltage range includes ground potential
• Low power supply current consumption independent of supply voltage

Applications

• Industrial applications
• Transducer interfaces
• DC gain blocks

Procurement Notes

Verify the specific package type and temperature grade against the datasheet before procurement. Confirm that the LM224PT variant matches the required operating conditions for your design. Ensure compatibility with your PCB footprint and soldering profile. Check for any specific ordering suffixes that may indicate different packaging or material compositions. Validate that the component meets all necessary regulatory standards for your target market.

Selection Notes

Select this component when designing circuits requiring multiple operational amplifiers with low power consumption. It is suitable for battery-powered applications due to its low quiescent current. Consider its wide supply voltage range for systems with varying power sources. The inclusion of ground in the common mode range makes it ideal for single-supply signal conditioning. Evaluate its performance against other members of the LM224 family if higher precision or different packaging is needed.

Part Context

The LM224PT belongs to the LM224 series of low-power quad operational amplifiers. This series is part of a broader family that includes the LM124 and LM324 variants, differentiated primarily by temperature ranges and manufacturing processes. The LM224 series is designed for general-purpose analog signal processing tasks where power efficiency and cost-effectiveness are priorities. It shares core architectural features with other industry-standard quad op-amps but offers specific performance characteristics tailored for industrial and commercial environments.

Replacement Considerations

Consider the LM324PT for similar functionality with potentially extended temperature ranges. The LM124PT may be used if military-grade specifications are not required but similar electrical characteristics are acceptable. Verify pinout compatibility and electrical parameter overlaps before substitution.