LM124DR

Overview

The LM124DR is a quad operational amplifier manufactured by UMW. It features four independent high-gain amplifiers with internal frequency compensation. The device operates from a single power supply over a wide voltage range, supporting split supplies as well. Key electrical parameters include a gain-bandwidth product of 1.2 MHz and a slew rate of 500 mV/µs. Input offset voltage is specified at 3 mV, with an input bias current of 20 nA. Supply voltage ranges from 3 V to 26 V. Each channel provides an output current of 30 mA. The common-mode rejection ratio is 80 dB, and input voltage noise density is not explicitly listed in the provided data.

Feature Summary

• Quad configuration with four independent high-gain operational amplifiers
• Internal frequency compensation for stability
• Wide single and dual power supply operation capability
• Rail-to-rail input common mode voltage range including ground

Applications

• General-purpose analog signal processing
• Buffer amplification circuits
• Active filter designs
• Voltage comparators

Procurement Notes

Verify the manufacturer designation UMW against the specific datasheet revision. Confirm package type is 14-SOP (SOIC-14) and operating temperature range matches -40°C to 105°C. Ensure RoHS compliance status aligns with project requirements. Cross-reference pinout compatibility if replacing existing components.

Selection Notes

Select this component for applications requiring low-power quad op-amps with single-supply flexibility. Consider the 1.2 MHz bandwidth and 500 mV/µs slew rate for moderate-speed signals. Evaluate the 30 mA output drive capability against load requirements. Compare input offset voltage and bias current specifications against precision needs.

Part Context

The LM124 series belongs to the family of low-power quad operational amplifiers. It is functionally similar to other industry-standard quad op-amps but offers specific performance characteristics from UMW. The DR suffix typically indicates a tape-and-reel packaging format suitable for automated assembly processes.

Replacement Considerations

Check for direct pin-compatible alternatives such as LM2902DR or LM324 variants. Verify that replacement parts meet or exceed the 1.2 MHz gain-bandwidth product and 500 mV/µs slew rate. Ensure thermal and electrical ratings are compatible with the original design constraints.