LM224KDE4

Overview

The LM224KDE4 is a quad operational amplifier manufactured by Texas Instruments, belonging to the LMx24 series. It features four independent amplifiers within a single package, designed for general-purpose applications. The device operates with a supply voltage range of 3 V to 30 V (single) or ±1.5 V to ±15 V (dual). Key electrical parameters include a gain-bandwidth product of 1.2 MHz and a slew rate of 0.5 V/µs. It utilizes LinCMOS technology, offering low power consumption with a typical supply current of 1.4 mA. The input offset voltage is specified at 2 mV, and it supports through-hole mounting in a 14-pin CDIP package.

Feature Summary

• Integrates four independent high-gain operational amplifiers into a single compact package.
• Utilizes LinCMOS technology to achieve low power consumption while maintaining stable performance.
• Supports wide single-supply or dual-supply voltage operation for flexible system integration.
• Features internally frequency-compensated circuits suitable for direct coupling applications.

Applications

• General-purpose analog signal processing circuits
• DC gain blocks requiring low power consumption
• Transducer signal conditioning interfaces
• Voltage comparators in non-precision applications

Procurement Notes

Verify the specific suffix 'E4' indicates lead-free compliance and RoHS status according to the manufacturer's latest documentation. Confirm the package type matches the required PCB footprint, as variations exist between SOIC and CDIP formats within the LM224 family. Ensure the operating temperature range aligns with the -25°C to +85°C specification found in standard datasheets. Cross-reference the ordering information with official Texas Instruments catalogs to confirm current production status and availability.

Selection Notes

Select this component when a quad amplifier configuration is required for cost-sensitive designs. It is suitable for applications where moderate bandwidth and slew rate are sufficient. Consider the package constraints if surface mount or through-hole assembly is preferred. Compare input offset voltage specifications against other variants if higher precision is needed. Evaluate power supply requirements to ensure compatibility with the 3 V to 30 V operating range.

Part Context

The LM224KDE4 is part of the broader LMx24 family, which includes the LM124, LM224, and LM324. These devices share similar internal architectures but differ in temperature ranges and manufacturing processes. The LM224 variant typically offers an extended industrial temperature range compared to commercial versions. This family is widely used in legacy and modern electronics due to its versatility and low cost.

Replacement Considerations

Direct replacements may include LM224DR, LM224D, or LM224DG4 from Texas Instruments. Verify pinout compatibility and electrical parameter equivalence before substitution. Other manufacturers may offer pin-compatible alternatives, but functional differences must be assessed.