LM2902AMX

Overview

The LM2902AMX is a quad operational amplifier manufactured by onsemi, formerly Fairchild Semiconductor. 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 parameters include a gain-bandwidth product of 1.3 MHz, a large voltage gain of 100 dB, and a supply current per amplifier of 375 µA. Input characteristics feature a low input bias current of 20 nA and a low input offset current of 2 nA. The power supply range supports single supplies from 3 V to 30 V and dual supplies from ±1.5 V to ±15 V.

Feature Summary

• Features four independent, high-gain operational amplifiers with internal frequency compensation.
• Designed for operation from a single power supply over a wide voltage range.
• Supports split power supply operation with low-power supply current drain independent of voltage magnitude.
• Input common-mode voltage range includes the negative rail.

Applications

• Automotive control systems
• Industrial control systems

Procurement Notes

Verify the manufacturer status carefully as the LM2902AMX is listed with an end-of-life status indicating it will be discontinued. Confirm availability through authorized distributors and check for minimum order requirements if ordering quantities exceeding standard stock levels. Ensure the component source matches the required specifications before integration into designs.

Selection Notes

Select this component when designing circuits requiring multiple operational amplifiers in a single package for automotive or industrial applications. Consider its wide single-supply voltage range and ground-sense input capability. Evaluate the 1.3 MHz gain-bandwidth product and 375 µA per-channel current consumption against system power and speed requirements.

Part Context

The LM2902 series represents a family of low-power, bipolar quad operational amplifiers widely used in cost-sensitive applications. Originally developed by National Semiconductor and Fairchild, the product line is now managed by onsemi. The LM2902AMX specifically denotes the surface-mount version in a 14-pin SOIC package, maintaining the industry-standard pinout and functionality of the legacy LM324/LM2902 devices.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult official replacement guides from onsemi or verify compatibility with equivalent quad op-amps such as the LM324 variants or other industry-standard quad operational amplifiers that meet the specific electrical and packaging requirements.