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Comparators

Comparators are essential devices designed to compare two currents or voltages by giving output digital signals to represent the larger outputs. These circuits are particularly made to operate like operational amplifiers and are the essential components in various electronic devices, analogue digital converters (ADCs), and relaxation oscillators. They are also essential to find the input value has reached a predefined value or threshold. 

How Do Comparators Work?

Comparators consist of two input pins and work by turning the output on upon detecting a change or similarity. For instance, when the minus voltage on the inverting pin becomes equal to that of the non-inverting plus voltage, the pin turns on. Typically, in an activated comparator, the output pin switches to the ground and is open. 

What are the Different Types of Comparators?

There is a wide range of comparator types given below.

  • Current Sense
  • Ground Sense
  • Quad differential
  • Differential / Dual Differential
  • Dual / Dual CMOS
  • High-speed CMOS
  • Low current CMOS
  • Low power / low voltage / low-power CMOS
  • Voltage
  • Dual Voltage / General Voltage
  • High speed 
  • Micropower
  • Nano-power
  • Precision
  • Push or pull output
  • Window
  • General-Purpose
  • Rail to rail

Comparators Based on Mounting Types

Comparators are available in SMD, through-hole, and surface mount mounting configurations, ideal for various applications. 

Comparator Types Based on the Power Supply

These essential devices also come in single and dual power supply configurations.

Applications of Comparators

The major function of a comparator is to transform analogue to digital converters and compare the high or low output digital signals. They are also employed in:

  • Automatic switching gadgets
  • Environment monitoring devices.

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Texas Instruments
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LMC7215IM5/NOPB, Texas Instruments
11599 In Stock
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£ 1.34
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£ 1.27
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TS862IDT, STMicroelectronics
21768 In Stock
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2500 +
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LMC7211AIM5/NOPB, Texas Instruments
8553 In Stock
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1000 +
£ 1.09
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MC3302DR2G, onsemi
1120 In Stock
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£ 0.21
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FAN156L6X, onsemi
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5000 +
£ 0.16
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LM239PT, STMicroelectronics
49219 In Stock
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£ 0.086
Microchip
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MCP6542-I/SN, Microchip
1498 In Stock
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£ 0.36
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LMV762MM/NOPB, Texas Instruments
9802 In Stock
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£ 1.54
STMicroelectronics
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LM2903DT, STMicroelectronics
17755 In Stock
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£ 0.082
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MCP6561T-E/LT, Microchip
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£ 0.42
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MCP6541UT-E/OT, Microchip
1948 In Stock
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NJM12903RB1-TE1, Nisshinbo Micro Devices
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NJM2903CV-TE1, Nisshinbo Micro Devices
1998 In Stock
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£ 0.18
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LM393DMR2G, onsemi
1361 In Stock
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LM2903BYPT, STMicroelectronics
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LM293D, STMicroelectronics
1543 In Stock
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LM293AD, Texas Instruments
3995 In Stock
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TLV7011DCKT, Texas Instruments
4763 In Stock
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APX393M8G-13, DiodesZetex
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LM2901AQS14-13, DiodesZetex
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MCP6576T-E/LT, Microchip
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TS332IYQ3T, STMicroelectronics
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LM311D, Texas Instruments
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LM2901M/NOPB, Texas Instruments
1650 In Stock
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Maxim Integrated
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MAX9141ESA+, Maxim Integrated
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New Items
New items
MAX964EEE+, Maxim

MAX964EEE+, Maxim

Quad Comparators, Maxim Integrated Comparators, Maxim Integrated
New items
LT1720IDD#PBF, Linear Technology

LT1720IDD#PBF, Linear Technology

Comparators, Linear Technology Linear Technology High speed comparators and micropower comparators have many useful features such as split input and output supplies, integrated references and amplifiers. They also offer application specific comparators such as window comparators. Micropower Comparator: supply currents as low as 300nA Comparators, Linear Technology
New items
AZV331KSTR-G1, DiodesZetex

AZV331KSTR-G1, DiodesZetex

Single Comparators, Diodes Inc Comparators, Diodes Inc
New items
MAX921CPA+, Maxim

MAX921CPA+, Maxim

Single Comparators, Maxim Integrated Comparators, Maxim Integrated
New items
LT1721CS#PBF, Linear Technology

LT1721CS#PBF, Linear Technology

Comparators, Linear Technology Linear Technology High speed comparators and micropower comparators have many useful features such as split input and output supplies, integrated references and amplifiers. They also offer application specific comparators such as window comparators. Micropower Comparator: supply currents as low as 300nA Comparators, Linear Technology
New items
MAX922CSA+, Maxim

MAX922CSA+, Maxim

Dual Comparators, Maxim Integrated Comparators, Maxim Integrated
New items
MAX924ESE+, Maxim

MAX924ESE+, Maxim

Quad Comparators, Maxim Integrated Comparators, Maxim Integrated
New items
MIC841NYMT T5, Micrel

MIC841NYMT T5, Micrel

Comparators, Micrel Comparators, Microchip
New items
LT6703HVIS5-3#TRMPBF, Linear Technology

LT6703HVIS5-3#TRMPBF, Linear Technology

Comparators, Linear Technology Linear Technology High speed comparators and micropower comparators have many useful features such as split input and output supplies, integrated references and amplifiers. They also offer application specific comparators such as window comparators. Micropower Comparator: supply currents as low as 300nA Comparators, Linear Technology
New items
BA2903SF-E2, ROHM

BA2903SF-E2, ROHM

General purpose BA8391G/BA10393/BA10339 family and high reliability BA2903/BA2901 family integrate one, two or four independent high gain voltage comparator. Some features are the wide operating voltage that is 2 to 36[V] (for BA8391G, BA10393, BA2903, BA2901 family), 3 to 36[V] (for BA10339 family) and low supply current. Therefore, this series is suitable for any application. Operable with a signal power supply Wide operating supply voltage +2.0[V] ~ +36.0[V] (single supply) ±1.0[V] ~ ±18.0[V] (split supply) Standard comparator pin-assignments Input and output are operable ground sense Internal ESD protection Human body model (HBM)±5000[V](Typ.) Gold PAD Wide temperature range -40[℃] ~ +125[℃] Applications: Car Audio Air-conditioner PND (Portable Navigation Device) LED Lighting Refrigerator STB (Set Top Box) Home Theater System IH Cooking Heater
New items
MAX9202EUD+, Maxim

MAX9202EUD+, Maxim

Single Comparators, Maxim Integrated Comparators, Maxim Integrated
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