LM118H

Overview

The LM118H is a single high-speed operational amplifier manufactured by Texas Instruments, formerly National Semiconductor. It features a gain-bandwidth product of 15 MHz and a slew rate of 70 V/us. The device operates within a supply voltage range of 10 V to 40 V (single) or ±5 V to ±20 V (dual). Key electrical parameters include an input offset voltage of 4 mV, input bias current of 250 nA, common-mode rejection ratio of 100 dB, and input voltage noise density of 15 nV/sqrt Hz. It delivers an output current of 21 mA per channel and consumes 5 mA of quiescent current. The component is housed in an 8-pin TO-99 metal can package and supports through-hole mounting across a temperature range of -55°C to +125°C.

Feature Summary

• High slew rate capability for fast signal response
• Metal can packaging for robust environmental protection
• Wide dual power supply operation range

Applications

• Video signal processing circuits
• Fast comparator applications
• Precision instrumentation amplifiers

Procurement Notes

Verify the manufacturer designation on the datasheet, as Texas Instruments acquired National Semiconductor. Confirm the specific suffix (e.g., NOPB) indicates lead-free compliance if required. Ensure the TO-99-8 package matches the PCB footprint. Check RoHS status documentation for regulatory compliance requirements before finalizing procurement.

Selection Notes

Select this component when a single-channel op amp with high speed and moderate precision is required. The 15 MHz bandwidth and 70 V/us slew rate distinguish it from standard general-purpose amplifiers. Consider the bipolar technology characteristics regarding input bias current and offset voltage against FET-input alternatives for low-current applications.

Part Context

The LM118 series belongs to the family of high-speed operational amplifiers designed for demanding analog signal processing tasks. Originally developed by National Semiconductor and now produced by Texas Instruments, these devices utilize bipolar junction transistor technology. The H variant specifically denotes the metal can package version, offering superior thermal and mechanical stability compared to plastic packages.

Replacement Considerations

Public confirmed substitute part numbers include LM118H/883.