List of LM-series integrated circuits
The following is a list of LM-series integrated circuits. Many were among the first analog integrated circuits commercially produced; some were groundbreaking innovations, and many are still being used. The LM series originated with integrated circuits made by National Semiconductor. The prefix LM stands for linear monolithic, referring to the analog components integrated onto a single piece of silicon. Because of the popularity of these parts, many of them were second-sourced by other manufacturers who kept the sequence number as an aid to identification of compatible parts. Several generations of pin-compatible descendants of the original parts have since become de facto standard electronic components.
Operational amplifiers">op-amp">Operational amplifiers
Differential comparators
| Part number | Predecessor | Obsolete? | Description |
| LM306 | High speed differential comparator with strobes | ||
| LM111 LM211 LM311 | LM106 LM710 | High speed differential comparator with strobes | |
| LM119 LM219 LM319 | LM711 | High speed dual comparators | |
| LM139 LM239 LM339 LM2901 | Quadruple wide supply range comparators | ||
| LM160 LM360 | μA760 | High speed comparator with complementary TTL outputs | |
| LM161 LM361 | only LM161 | High speed comparator with strobed complementary TTL outputs | |
| LM193 LM293 LM393 LM2903 | Dual wide supply range comparators | ||
| LM397 | General purpose comparator with an input common mode that includes ground | ||
| LM613 | Dual op-amps, dual comparators and adjustable reference |
Current-mode amplifiers
| Part number | Predecessor | Obsolete? | Description |
| LM359 | Dual, high speed, programmable current mode amplifiers |
Instrumentation amplifiers
| Part number | Predecessor | Obsolete? | Description |
| LM363 | Yes | Precision instrumentation amplifier |
Audio amplifiers
| Part number | Predecessor | Obsolete? | Description |
| LM378 | Yes | Dual 4 W audio power amplifier | |
| LM380 | 2.5 W audio power amplifier | ||
| LM384 | 5 W audio power amplifier | ||
| LM1875 | 20 W audio power amplifier | ||
| LM1876 | Dual 20 W audio power amplifier with Mute and Standby Modes | ||
| LM386 | Low voltage audio power amplifier | ||
| LM3875 | High-performance 56 W audio power amplifier | ||
| LM3886 | High-performance 68 W audio power amplifier |
Precision reference
| Part number | Predecessor | Obsolete? | Description |
| LM113 LM313 | only LM313 | Temperature compensated Zener reference diode, 1.22 V breakdown voltage | |
| LM329 | Temperature compensated Zener reference diode, 6.9 V breakdown voltage | ||
| LM136 LM236 LM336 | 2.5 V or 5 V Zener reference diode with temperature coefficient trimmer | ||
| LM368 | Yes | 2.5 V precision voltage reference | |
| LM169 LM369 | LM199 | Yes | 2.5 V temperature compensated precision voltage reference |
| LM185 LM285 LM385 | Fixed or adjustable micropower voltage reference | ||
| LM199 LM299 LM399 | LM199 & LM299 | Fixed voltage reference | |
| LM431 | Adjustable precision Zener shunt regulator |
Voltage regulators
| Part number | Predecessor | Obsolete? | Description |
| LM105 LM305 | LM100 | Adjustable positive voltage regulator | |
| LM109 LM309 | 5-volt regulator | ||
| LM117 LM317 | Adjustable 1.5 A positive voltage regulator | ||
| LM120 LM320 | Fixed 1.5 A negative voltage regulator | ||
| LM123 LM323 | Fixed 3 A, 5-volt positive voltage regulator | ||
| LM325 | Yes | Dual ±15-volt voltage regulator | |
| LM330 | 5-volt positive voltage regulator, 0.6 V input-output difference | ||
| LM333 | Yes | Adjustable 3 A negative voltage regulator | |
| LM237 LM337 | Adjustable 1.5 A negative voltage regulator | ||
| LM138 LM338 | Adjustable 5 A voltage regulator | ||
| LM140 LM340 | LM78xx | 1 A positive voltage regulator, can be adjustable | |
| LM341 LM78Mxx | 0.5 A protected positive voltage regulators | ||
| LM145 LM345 | Yes | Fixed 3 A, -5-volt negative voltage regulator | |
| LM150 LM350 | only LM150 | Adjustable 3 A, positive voltage regulator | |
| LM723 | Low power variable voltage regulator | ||
| LM78xx | Fixed 1 A positive voltage regulators | ||
| LM79xx | Fixed 1.5 A negative voltage regulators | ||
| LM2576 | Fixed and adjustable 3 A buck/buck-boost switching regulators |
Voltage-to-frequency converters
| Part number | Predecessor | Obsolete? | Description |
| LM231 LM331 | Precision voltage-to-frequency converter |
Current sources
| Part number | Predecessor | Obsolete? | Description |
| LM134 LM234 LM334 | Adjustable current source |