LM258AM

Overview

The LM258AM is a dual operational amplifier manufactured by onsemi, belonging to the LM258 series. It features two independent, high-gain, internally frequency-compensated amplifiers designed for single-supply operation over a wide voltage range. The device operates with a supply voltage from 3 V to 32 V or ±1.5 V to ±16 V. Key electrical parameters include an input bias current of 150 nA, an input offset voltage of 5 mV, and a unity-gain bandwidth of 1 MHz. It provides a typical DC voltage gain of 100 dB and a common-mode rejection ratio of 70 dB. The unit is housed in an 8-lead SOIC surface-mount package.

Feature Summary

• Internally frequency compensated for stability without external components
• Single-supply operation capability including ground-referenced inputs and outputs
• Low power supply drain independent of supply voltage magnitude
• High differential input voltage range equal to the power supply voltage

Applications

• Transducer amplifiers
• DC gain blocks
• General-purpose linear circuits requiring single-supply implementation

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm RoHS compliance status via official datasheets. Check for obsolescence notices as availability may vary. Ensure packaging specifications match design requirements. Validate temperature ratings against application environmental conditions.

Selection Notes

Select this component for applications requiring low-power dual op-amps with single-supply compatibility. Consider the 5 mV input offset voltage for precision requirements. Evaluate the 150 nA input bias current for high-impedance source interfacing. Verify that the 8-lead SOIC package fits the PCB layout constraints.

Part Context

The LM258AM is part of the broader LM258 family of low-power dual operational amplifiers produced by onsemi. This series is widely recognized for its versatility in single-supply systems. The AM suffix typically denotes specific performance grades or packaging variations within the standard LM258 lineup, maintaining core functional compatibility with other variants like the LM258N or LM258DR.

Replacement Considerations

LM258N

FAQ

Does the LM258AM support rail-to-rail output?

Yes, the LM258AM can swing its output voltage close to ground (negative rail) when operated from a single supply.

What is the maximum supply voltage for the LM258AM?

The maximum supply voltage is 32 V for single-supply operation or ±16 V for dual-supply operation.