LM158H

Overview

The LM158H is a dual operational amplifier manufactured by Texas Instruments, formerly National Semiconductor. It features two independent high-gain amplifiers with internal frequency compensation. Key electrical parameters include a gain-bandwidth product of 1 MHz and a slew rate of 500 mV/us. The input offset voltage is specified at 5 mV, with an input bias current of 500 nA. It operates on supply voltages ranging from 6 V to 44 V single supply or 3 V to 22 V dual supply. The device draws 3 mA of operating current and provides 45 mA output current per channel. It offers a common-mode rejection ratio of 90 dB and supports temperatures from -55°C to +125°C in a TO-99-8 package.

Feature Summary

• Internal frequency compensation eliminates the need for external components
• Wide single-supply operation capability from 6 V to 44 V
• High common-mode rejection ratio for signal integrity
• Rail-to-rail output swing capability near ground

Applications

• Transducer amplification circuits
• DC gain blocks
• Single-supply logic system interface electronics

Procurement Notes

Verify the manufacturer designation carefully, as the component was originally produced by National Semiconductor before its acquisition by Texas Instruments. Confirm that the specific suffix 'H' corresponds to the TO-99-8 metal can package variant rather than plastic packages. Ensure the datasheet version matches the required military-grade temperature range specifications if applicable to the design environment.

Selection Notes

Select this component when a dual op-amp with internal compensation is required for wide voltage single-supply applications. The TO-99-8 package is suitable for through-hole mounting in rugged environments. Consider the 1 MHz bandwidth and 500 mV/us slew rate for general-purpose analog signal processing tasks where low power consumption relative to performance is necessary.

Part Context

This part belongs to the LM1558/LM158 family of dual operational amplifiers. The LM158 series is characterized by low power supply drain independent of supply voltage magnitude. The LM158H specifically denotes the hermetically sealed metal can version, offering enhanced durability compared to standard plastic封装 variants within the same functional family.

Replacement Considerations

• LM1558H/NOPB