LM124N

Overview

The LM124N is a quad operational amplifier manufactured by STMicroelectronics, housed in a 14-pin PDIP package for through-hole mounting. It features four independent high-gain amplifiers with internal frequency compensation. The device supports wide single-supply voltages from 3 V to 30 V and dual supplies from ±1.5 V to ±15 V. Key electrical parameters include a gain-bandwidth product of 1.3 MHz, a typical voltage gain of 100 dB, and a slew rate of 0.4 V/µs. It operates within a temperature range of -55 °C to +125 °C.

Feature Summary

• Four independent high-gain operational amplifiers with internal frequency compensation
• Input common mode voltage range includes ground potential
• Low power supply current drain that remains independent of the magnitude of the power supply voltage
• Wide operating voltage range compatible with both single and split power supplies

Applications

• General-purpose signal conditioning circuits
• Sensor interface applications
• Active filtering systems
• DC gain blocks

Procurement Notes

Verify the specific suffix 'N' corresponds to the PDIP-14 package configuration when sourcing. Confirm the manufacturer designation as STMicroelectronics to ensure component authenticity. Check datasheet revisions for any updates regarding thermal characteristics or pinout definitions prior to finalizing procurement orders.

Selection Notes

Select this component for designs requiring low power consumption across a broad voltage spectrum. The inclusion of ground in the input common-mode range simplifies single-supply interfacing. Ensure the required bandwidth and slew rate meet the application's signal integrity needs without necessitating faster, higher-cost alternatives.

Part Context

This part belongs to the LM124/LM224x/LM324x family of low-power quad operational amplifiers. These devices are characterized by their ability to operate efficiently from single supplies while maintaining performance suitable for general analog processing tasks. The LM124 variant typically denotes the commercial grade version within this series.

Replacement Considerations

Compatible substitutes include LM324 variants which share similar electrical characteristics and pinouts. Verify package compatibility and thermal specifications before swapping components in existing PCB layouts.