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.
National Semiconductor was an American semiconductor manufacturer which specialized in analog devices and subsystems, formerly with headquarters in Santa Clara, California, United States. The company produced power management integrated circuits, display drivers, audio and operational amplifiers, communication interface products and data conversion solutions. National's key markets included wireless handsets, displays and a variety of broad electronics markets, including medical, automotive, industrial and test and measurement applications.
A de facto standard is a custom or convention that has achieved a dominant position by public acceptance or market forces. De facto is a Latin phrase that means in fact in the sense of "in practice but not necessarily ordained by law" or "in practice or actuality, but not officially established", as opposed to de jure.
|LM10||Op-amp with an adjustable voltage reference|
|μA709||General purpose op-amp with external compensation|
|μA709||Yes||General purpose op-amp|
|Yes||Micropower op-amp with external compensation|
|Precision, fast general purpose op-amp with external compensation|
|LM321||Low power op-amp|
|Quadruple wide supply range op-amps|
|Yes||High Voltage Operational Amplifier|
|Yes||High Voltage, High Slew Rate Operational Amplifier|
|only LM146||Programmable quadruple op-amps|
|General purpose quadruple op-amps|
|Low power, wide supply range dual op-amps|
|LM392||Low power dual op-amps and comparator|
|LM432||LM358, LMV431||Dual op-amps with fixed 2.5 V reference|
|LM611||Op-amp with an adjustable voltage reference|
|LM614||Quadruple op-amps with an adjustable voltage reference|
|LM675||Power op-amp with a maximal current output of 3 amperes|
|LM709||Yes||General purpose op-amp|
|LM741||LM709||General purpose op-amp Widely used.|
|LM748||General purpose op-amp with external compensation|
|LM833||Dual high speed audio operational amplifiers|
|LM837||Low noise quadruple op-amps|
|LM306||High speed differential comparator with strobes|
|High speed differential comparator with strobes|
|LM711(?)||High speed dual comparators|
|Quadruple wide supply range comparators|
|μA760||High speed comparator with complementary TTL outputs|
|only LM161||High speed comparator with strobed complementary TTL outputs|
|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|
|LM359||Dual, high speed, programmable current mode amplifiers|
|LM363||Yes||Precision instrumentation amplifier|
|LM380||2.5 W audio power amplifier (fixed 34 dB gain)|
|LM384||5 W audio power amplifier (fixed 34 dB gain)|
|LM1875||20 W audio power amplifier (up to 90 dB gain)|
|LM1876||Dual 20 W audio power amplifier with Mute and Standby Modes (up to 90 dB gain)|
|LM386||Low voltage audio power amplifier|
|LM3875||High-performance 56 W audio power amplifier|
|LM3886||High-performance 68 W audio power amplifier|
|only LM313||Temperature compensated Zener reference diode, 1.22 V breakdown voltage|
|LM329||Temperature compensated Zener reference diode, 6.9 V breakdown voltage|
|2.5 V or 5 V Zener reference diode with temperature coefficient trimmer|
|LM368||Yes||2.5 V precision voltage reference|
|LM199||Yes||2.5 V temperature compensated precision voltage reference|
|Fixed (1.2 V, 2.5 V) or adjustable micropower voltage reference|
|LM199 & LM299||Fixed (6.95 V) voltage reference|
|LM431||Adjustable precision Zener shunt regulator (2.5 V-36 V)|
|LM100||Adjustable positive voltage regulator (4.5 V-40 V)|
|5-volt regulator (up to 1 A)|
|Adjustable 1.5 A positive voltage regulator (1.25 V-37 V)|
|Fixed 1.5 A negative voltage regulator (-5 V, -12 V, -15 V)|
|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 (-1.2 V to -32 V)|
|Adjustable 1.5 A negative voltage regulator (-1.2 V to -37 V)|
|Adjustable 5 A voltage regulator (1.2 V-32 V)|
|LM78xx||1 A positive voltage regulator (5 V, 12 V, 15 V), can be adjustable|
|0.5 A protected positive voltage regulators (5 V, 12 V, 15 V)|
|Yes||Fixed 3 A, -5-volt negative voltage regulator|
|only LM150||Adjustable 3 A, positive voltage regulator (1.2 V-33 V)|
|LM723||Low power variable voltage regulator|
|LM78xx||Fixed 1 A positive voltage regulators (5 V-24 V)|
|LM79xx||Fixed 1.5 A negative voltage regulators (-5 V, -12 V, -15 V)|
|LM2576||Fixed and adjustable 3 A buck/buck-boost switching regulators|
|Precision voltage-to-frequency converter (1 Hz-100 kHz)|
|Adjustable current source (1 μA-10 mA)|
|LM19||Temperature sensor, 2.5 °C accuracy|
|LM20||Temperature sensor, 1.5 °C accuracy|
|LM26||Factory preset thermostat, 3 °C accuracy|
|LM27||Factory preset thermostat (120 °C-150 °C), 3 °C accuracy|
|LM34||Precision Fahrenheit temperature sensor, 0.5 °F accuracy|
|LM35||Precision Celsius temperature sensor, 0.25 °C accuracy|
|LM45||Precision Celsius temperature sensor, 2 °C accuracy|
|LM50||Single supply Celsius temperature sensor, 2 °C accuracy|
|LM56||Dual output resistor programmable thermostat with analog temperature sensor|
|Single supply Celsius temperature sensors |
(The difference between the components is the voltage scale)
|LM75A||Digital temperature sensor and programmable thermostat.|
|Precision Zener temperature sensor, 1 °C accuracy|
|LM566||Yes||Voltage Controlled Oscillator (VCO)|
|LM3914||Bargraph display driver (linear steps)|
|LM3915||Bargraph display driver (logarithmic steps)|
|LM13700||Operational Transconductance Amplifier (OTA)|
The 4000 series is a CMOS logic family of integrated circuits (ICs) first introduced in 1968 by RCA. Almost all IC manufacturers active during this initial era fabricated models for this series. It is still in use today.
The 7400 series of integrated circuits (ICs) are the most popular logic families. In 1964, Texas Instruments introduced the first members of their ceramic package SN5400 series transistor–transistor logic (TTL) logic chips, later a low-cost plastic package SN7400 series was introduced in 1966 which quickly gained over 50% of the logic chip market, and eventually becoming de facto standardized electronic components. Over the decades, many generations of pin-compatible descendant families evolved to include support for low power CMOS technology, lower supply voltages, and surface mount packages.
In electronics, pin-compatible devices are electronic components, generally integrated circuits or expansion cards, sharing a common footprint and with the same functions assigned or usable on the same pins. Pin compatibility is a property desired by systems integrators as it allows a product to be updated without redesigning printed circuit boards, which can reduce costs and decrease time to market.
A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power. It is composed of semiconductor material usually with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor's terminals controls the current through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal. Today, some transistors are packaged individually, but many more are found embedded in integrated circuits.
Texas Instruments Incorporated (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. Its headquarters are in Dallas, Texas, United States. TI is one of the top-10 semiconductor companies worldwide, based on sales volume. Texas Instruments's focus is on developing analog chips and embedded processors, which account for more than 80% of their revenue. TI also produces TI digital light processing technology and education technology products including calculators, microcontrollers and multi-core processors. To date, TI has more than 45,000 patents worldwide.
Transistor–transistor logic (TTL) is a logic family built from bipolar junction transistors. Its name signifies that transistors perform both the logic function and the amplifying function ; it is the same naming convention used in resistor–transistor logic (RTL) and diode–transistor logic (DTL).
In electronics, a linear regulator is a system used to maintain a steady voltage. The resistance of the regulator varies in accordance with the load resulting in a constant voltage output. The regulating device is made to act like a variable resistor, continuously adjusting a voltage divider network to maintain a constant output voltage and continually dissipating the difference between the input and regulated voltages as waste heat. By contrast, a switching regulator uses an active device that switches on and off to maintain an average value of output. Because the regulated voltage of a linear regulator must always be lower than input voltage, efficiency is limited and the input voltage must be high enough to always allow the active device to drop some voltage.
The 555 timer IC is an integrated circuit (chip) used in a variety of timer, pulse generation, and oscillator applications. The 555 can be used to provide time delays, as an oscillator, and as a flip-flop element. Derivatives provide two (556) or four (558) timing circuits in one package.
A bandgap voltage reference is a temperature independent voltage reference circuit widely used in integrated circuits. It produces a fixed (constant) voltage regardless of power supply variations, temperature changes and circuit loading from a device. It commonly has an output voltage around 1.25 V. This circuit concept was first published by David Hilbiber in 1964. Bob Widlar, Paul Brokaw and others followed up with other commercially successful versions.
Analog Devices, Inc. (ADI), also known simply as Analog, is an American multinational semiconductor company specializing in data conversion, signal processing and power management technology, headquartered in Norwood, Massachusetts. In 2012, Analog Devices led the worldwide data converter market with a 48.5% share, according to analyst firm Databeans.
Robert John Widlar was an American electronics engineer and a designer of linear integrated circuits (ICs).
The LM317 is a popular adjustable positive linear voltage regulator. It was designed by Robert C Dobkin in 1976 while he worked at National Semiconductor.
Robert Allen Pease was an analog integrated circuit design expert and technical author. He designed several very successful "best-seller" integrated circuits, many of them in continuous production for multiple decades. These include the LM331 voltage-to-frequency converter, and the LM337 adjustable negative voltage regulator.
The 2N2222 is a common NPN bipolar junction transistor (BJT) used for general purpose low-power amplifying or switching applications. It is designed for low to medium current, low power, medium voltage, and can operate at moderately high speeds. It was originally made in the TO-18 metal can as shown in the picture.
78xx is a family of self-contained fixed linear voltage regulator integrated circuits. The 78xx family is commonly used in electronic circuits requiring a regulated power supply due to their ease-of-use and low cost.
The LM386 is an integrated circuit containing a low voltage audio power amplifier. It is suitable for battery-powered devices such as radios, guitar amplifiers, and hobby electronics projects. The IC consists of an 8 pin dual in-line package (DIP-8) and can output 0.25 to 1 watts of power depending on the model using a 9-volt power supply.
The LM3914 is an integrated circuit (IC) designed by National Semiconductor and used to operate displays that visually show the magnitude of an analog signal.
Robert C. Dobkin is an American electrical engineer, co-founder of Linear Technology Corporation, and veteran linear (analog) integrated circuit (IC) designer.