LM124AWB

Overview

The LM124AWB is a low-power quad operational amplifier manufactured by Texas Instruments. It consists of four independent, high-gain operational amplifiers with internal frequency compensation. The device operates from a single power supply over a wide voltage range or split supplies. Key electrical characteristics include a gain-bandwidth product of 1.2 MHz, a slew rate of 500 mV/us, and an input bias current of 10 nA. It supports a maximum supply voltage of 32 V and functions within a temperature range of -55°C to 125°C.

Feature Summary

• Low power consumption with supply current drain independent of voltage magnitude
• Wide single-supply operation capability including ground-referenced inputs
• Internal frequency compensation for stability without external components
• High common-mode input voltage range extending to negative rail

Applications

• Transducer amplifiers for sensor signal conditioning
• DC gain blocks in precision instrumentation circuits
• Integrators and active filters in analog signal processing
• Voltage comparators in threshold detection systems

Procurement Notes

Verify the specific suffix AWB against official Texas Instruments documentation to confirm package type and material compliance. Ensure the source document is the complete manufacturer datasheet rather than a distributor summary. Confirm that the ordering part number matches the exact electrical grade and temperature rating required for the application environment.

Selection Notes

Select this component when low quiescent current is critical alongside multi-channel amplification needs. Compare the 1.2 MHz bandwidth and 500 mV/us slew rate against application speed requirements. Evaluate the 10 nA input bias current suitability for high-impedance sources. Verify that the ceramic flatpack package meets thermal and mechanical constraints.

Part Context

The LM124 series belongs to Texas Instruments' family of low-power quad operational amplifiers. It shares architectural similarities with the LM224 and LM324 but offers military-grade temperature specifications. The AWB suffix typically denotes a specific ceramic flatpack variant designed for high-reliability applications requiring robust packaging.

Replacement Considerations

Official substitutes include other members of the LM124 family such as LM124AJ or LM124J if package compatibility allows. Verify pinout and electrical parameters match exactly before substitution. Consult the latest TI interchangeability guide for qualified alternatives.

FAQ

Does the LM124AWB support rail-to-rail output?

No, the LM124AWB does not feature rail-to-rail output. The output swing typically extends to within approximately 1 V of the positive supply rail and can reach the negative rail.

What is the input common-mode voltage range?

The input common-mode voltage range includes ground and extends to the negative supply rail. It generally operates within the full supply voltage range depending on the specific supply configuration.