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End  *LM393(8) *-LM393(1) *CLM393(4) *PLM393(3)
Included  *LM393*(15) *LM393B*(7) *LM393L*(4)
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LM393 Datasheet, PDF

Search Partnumber : Match&Start with "LM393" - Total : 860 ( 1/43 Page)
ManufacturerPart #DatasheetDescription
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Motorola, Inc
LM393 MOTOROLA-LM393 Datasheet
136Kb/6P
   SINGLE SUPPLY, LOW POWER DUAL COMPARATORS
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Texas Instruments
LM393 TI-LM393 Datasheet
3Mb/55P
[Old version datasheet]   LM393B, LM2903B, LM193, LM293, LM393 and LM2903 Dual Comparators
logo
STMicroelectronics
LM393 STMICROELECTRONICS-LM393 Datasheet
234Kb/15P
   Low power dual voltage comparators
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ON Semiconductor
LM393 ONSEMI-LM393 Datasheet
118Kb/10P
   Low Offset Voltage Dual Comparators
October, 2016 ??Rev. 31
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NXP Semiconductors
LM393 PHILIPS-LM393 Datasheet
121Kb/6P
   Low power dual voltage comparator
1995 Nov 27
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STMicroelectronics
LM393 STMICROELECTRONICS-LM393 Datasheet
264Kb/15P
   Low Power Dual Voltage Comparators
February 2006 Rev. 6
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TAITRON Components Inco...
LM393 TAITRON-LM393 Datasheet
303Kb/11P
   Voltage Comparator
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Unisonic Technologies
LM393 UTC-LM393 Datasheet
181Kb/5P
   DUAL DIFFERENTIAL COMPARATOR
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Texas Instruments
LM393 TI-LM393 Datasheet
413Kb/18P
[Old version datasheet]   DUAL DIFFERENTIAL COMPARATORS
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STMicroelectronics
LM393 STMICROELECTRONICS-LM393 Datasheet
264Kb/15P
   Low Power Dual Voltage Comparators
February 2006 Rev. 6
logo
Unisonic Technologies
LM393 UTC-LM393 Datasheet
164Kb/6P
   DUAL DIFFERENTIAL COMPARATOR
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3PEAK INC.
LM393 3PEAK-LM393 Datasheet
1Mb/13P
   36V Low Power Dual/Quad Differential Comparators
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Wing Shing Computer Com...
LM393 WINGS-LM393 Datasheet
79Kb/3P
   Dual Differential Comparators
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ON Semiconductor
LM393 ONSEMI-LM393 Datasheet
331Kb/13P
   Low Offset Voltage Dual Comparators
August, 2021 - Rev. 33
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Shenzhen Luguang Electr...
LM393 LUGUANG-LM393 Datasheet
267Kb/3P
   Low Power Low Offset Voltage Dual Comparators
logo
Guangdong Kexin Industr...
LM393 KEXIN-LM393 Datasheet
82Kb/2P
   Low Power Low Offset Voltage Dual Comparators
logo
ON Semiconductor
LM393 ONSEMI-LM393 Datasheet
115Kb/10P
   Low Offset Voltage Dual Comparators
October, 2004 ??Rev. 15
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Toshiba Semiconductor
LM393 TOSHIBA-LM393 Datasheet
5Mb/70P
   COLOUR TELEVISION
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Texas Instruments
LM393 TI1-LM393 Datasheet
1Mb/26P
[Old version datasheet]   DUAL DIFFERENTIAL COMPARATORS
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ARTSCHIP ELECTRONICS CO...
LM393 ARTSCHIP-LM393 Datasheet
489Kb/15P
   Low Power Low Offset Voltage Dual Comparators

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LM393 Distributor

DistributorPart #ManufacturerDescriptionPriceQty.
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Brief Description of LM393


The LM393 is a widely used dual voltage comparator IC (integrated circuit). Voltage comparators are electronic devices that compare two input voltage signals and provide a high or low output based on the comparison. The LM393, in particular, contains two separate voltage comparators in a single package.

Here are some key characteristics and specifications of the LM393 voltage comparator:

Type: LM393 is a dual voltage comparator IC.

Package: It typically comes in an 8-pin DIP (Dual Inline Package) or SOIC (Small Outline Integrated Circuit) package.

Supply Voltage: The LM393 can operate with a wide range of supply voltages, often from a minimum of around 2 volts up to 36 volts, making it suitable for a variety of applications.

High and Low Inputs: Each comparator in the LM393 has two input pins: one for the non-inverting input (+) and one for the inverting input (-). These inputs are used to compare two voltage signals.

Output: The LM393 has open-drain outputs, which means they can sink current when the output is low but do not actively drive the output high. This is useful in applications where you need to interface with different logic levels.

Hysteresis: Some versions of the LM393 include hysteresis, which is a built-in feature that prevents rapid switching near the voltage threshold, reducing noise and ensuring stable operation.

Applications: The LM393 is commonly used in applications like window comparators, signal conditioning, voltage monitoring, oscillators, and more. It's a versatile component for comparing and controlling voltage levels.

Pinout: The 8-pin DIP or SOIC package of the LM393 has two comparators, and each comparator has two inputs, a non-inverting input (pin 3 and 5) and an inverting input (pin 2 and 6). The outputs for the two comparators are on pins 1 and 7.

Equivalent for LM393


The LM393 is a dual voltage comparator integrated circuit (IC) commonly used in various analog and digital applications. If you're looking for a replacement for the LM393 IC, you can consider several alternatives with similar functionality:

LM339: The LM339 is a quad voltage comparator IC, offering four independent comparators in one package. It's a popular choice as a replacement for the LM393 when you need more comparator channels.

LM2903: The LM2903 is another dual voltage comparator IC with characteristics similar to the LM393. It can be used as a drop-in replacement in most applications.

LM311: The LM311 is a single voltage comparator with additional features, including an open-collector output. If you only need a single comparator, the LM311 can work as a replacement.

TL331: The TL331 is a single voltage comparator with a push-pull output. It's a suitable replacement for the LM393 in applications that require this type of output.

*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.

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