LM124DR

Overview

The LM124DR is a quad general-purpose operational amplifier manufactured by Texas Instruments in a 14-SOIC surface-mount package. It features four independent high-gain amplifiers with internal frequency compensation, enabling stable operation across a wide supply voltage range from 3V to 30V single supply or ±1.5V to ±15V dual supply. The device offers a gain-bandwidth product of 1.2 MHz and a slew rate of 0.5 V/µs, supporting input bias currents as low as 20 nA and output drive capabilities up to 30 mA per channel.

Feature Summary

• Quad architecture with four independent high-gain operational amplifiers
• Internal frequency compensation eliminates external component requirements
• Wide single-supply operating voltage range from 3V to 30V
• Low power consumption independent of supply voltage magnitude

Applications

• Transducer amplifiers for sensor signal conditioning
• DC gain blocks in precision instrumentation circuits
• Build-up oscillators for timing and waveform generation
• Voltage comparators in threshold detection systems

Procurement Notes

Verify the specific suffix DR indicates the tape-and-reel packaging format compatible with automated surface-mount assembly processes. Confirm RoHS compliance status and moisture sensitivity level ratings prior to integration into production workflows to ensure storage and handling requirements are met.

Selection Notes

Select this component when multiple op-amps are required within a single footprint constraint. The SOIC-14 package provides a balance between pin count and board space efficiency. Ensure the application does not require rail-to-rail output swing near the positive supply, as this device exhibits limited headroom under heavy loads.

Part Context

This part belongs to the LMx24 family of quad operational amplifiers, which shares architectural similarities with the LM324 series but utilizes distinct semiconductor processing technologies. The LM124 variant typically targets broader industrial temperature ranges compared to commercial equivalents, offering reliability in harsher environmental conditions.

Replacement Considerations

Official substitutes include the LM124DRG4, which maintains identical electrical specifications while adhering to enhanced environmental compliance standards. Designers should verify pinout compatibility and thermal performance characteristics when transitioning between these variants.