LM158AH

Overview

The LM158AH is a dual operational amplifier consisting of two independent, high-gain, internally frequency-compensated amplifiers. Designed for single power supply operation over a wide voltage range, it features low power supply drain independent of voltage magnitude. Key electrical parameters include a large DC voltage gain of 100 dB, a unity-gain bandwidth of 1.1 MHz, and an input bias current of 20 nA. The device supports an input common-mode voltage range including the negative rail and provides a large output voltage swing from 0 V to (VCC - 1.5 V).

Feature Summary

• Internally frequency compensated for stability without external components.
• Operates from a single power supply over a wide voltage range.
• Input common-mode voltage range includes ground potential.
• Output voltage can swing to ground even with single supply operation.

Applications

• Transducer amplifiers
• DC gain blocks
• Single power supply logic system interface electronics

Procurement Notes

Verify the manufacturer designation as National Semiconductor or Texas Instruments, noting that Texas Instruments acquired National Semiconductor's analog product line. Confirm the suffix 'AH' corresponds to the specific military-grade temperature range and package variant intended for your design requirements before finalizing procurement.

Selection Notes

Select this component when designing circuits requiring dual op-amps in a single package with internal frequency compensation. It is suitable for applications needing low input bias current and the ability to handle input signals at ground level while operating from a single positive supply voltage.

Part Context

The LM158 series belongs to a family of general-purpose dual operational amplifiers. These devices are widely used in consumer and industrial electronics due to their compatibility with standard logic supply voltages and their ability to function effectively in single-supply systems where split supplies are unavailable.

Replacement Considerations

LM358

FAQ

Can the LM158AH operate with a single power supply?

Yes, the LM158AH is specifically designed to operate from a single power supply over a wide range of voltages.

Does the input common-mode voltage range include ground?

Yes, in linear mode, the input common-mode voltage range includes the negative rail (ground).