LM224KADR

Overview

The LM224KADR is a quad operational amplifier manufactured by Texas Instruments, housed in a 14-pin SOIC surface-mount package. It features a gain-bandwidth product of 1.2 MHz and a slew rate of 500 mV/µs. The device operates on a single supply voltage ranging from 3 V to 32 V, or dual supplies from ±1.5 V to ±16 V. Key electrical specifications include an input offset voltage of 5 mV, input bias current of 150 nA, and a common-mode rejection ratio of 80 dB. It delivers an output current of 20 mA per channel with a quiescent current of 1.4 mA. The component supports an operating temperature range from -25°C to +85°C.

Feature Summary

• Integrates four independent high-gain operational amplifiers within a single compact package.
• Provides electrostatic discharge protection rated at 2 kV for enhanced signal integrity.
• Supports flexible power configurations with wide single and dual supply voltage ranges.

Applications

• General-purpose analog signal conditioning circuits
• Industrial sensor interface modules
• Audio pre-amplification stages

Procurement Notes

Verify the specific suffix KADR against official Texas Instruments documentation to confirm tape-and-reel packaging and industrial temperature grade compliance. Ensure the ordering part number matches the exact pinout and ESD protection specifications required for the target design. Cross-reference datasheet revisions to validate parameter consistency before finalizing procurement orders.

Selection Notes

Select this component when a quad amplifier configuration is required with moderate bandwidth and wide supply voltage flexibility. It is suitable for applications needing rail-to-rail input capabilities and robust ESD protection without shutdown functionality. Consider the SOIC-14 footprint constraints and thermal dissipation requirements relative to the 20 mA output drive capability.

Part Context

This part belongs to the LM224KA series, representing the industrial temperature grade variant of the LM224 family. It shares architectural similarities with the LM124 (military) and LM324 (commercial) counterparts but is optimized for broader environmental stability. The KADR suffix specifically denotes the reel-based packaging format used for automated surface-mount assembly processes.

Replacement Considerations

LM224ADRE4 is a verified equivalent part number offering identical electrical characteristics and pinout compatibility within the same manufacturer ecosystem.