About Analog Comparators

Analog Comparators

Analog comparators are devices used to compare two analog voltage signals and output either a digital high state or a digital low state depending on whether the compared signals are above or below a certain reference voltage. Dubbed the “World’s Simplest Microprocessor” by industry analysts, an analog comparator consists of an operational amplifier circuitry and a few resistors and capacitors. The operational amplifier provides power and the resistors and capacitors provide the necessary timing-related delay to the input signals. Generally, when the two input signals exceed the reference voltage, the output of the comparator is a logic high and when the input signals are below the reference, the output is a logic low. The thresholds for the inputs can be predetermined or can be adjustable depending on the application requirements. Analog comparators can also be made with programmable input thresholds or limits. These are useful in sensors or actuators that need to be adjusted to appropriate ranges.

Analog Comparators

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(Ex. GST)(▲▼)		Enter Qty SeriesNumber of ChannelsOutput TypeResponse TimeComparator TypeIb - Input Bias CurrentVos - Input Offset VoltageSupply Voltage - MaxSupply Voltage - MinOperating Supply CurrentSupply Current per ChannelMounting StyleMinimum Operating TemperatureMaximum Operating TemperaturePd - Power DissipationPackage / CaseQualificationPackagingOutput Current per ChannelSupply Current
  
                        
LM339QT


Comparator ICs Low Power QUAD 1.1 mA 25nA 250mV
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STMicroelectronics 203700
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USD 0.1815
Multiples of: 3000

Lm339  1.3 usDifferential25 nA5 mV32 V2 V1.1 mA Smd/Smt0 C+ 70 C QFN - 16 Reel  
Hot AS339GTR-G1


Analog Comparators Comparator
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Diodes Incorporated 191279
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USD 0.083
Multiples of: 1

 4 ChannelOpen Collector1.3 usGeneral Purpose25 nA 36 V2 V12 mA Smd/Smt- 40 C+ 85 C790 mWTSSOP - 14 -0.9 mA 
NCV2901DTBR2G


Analog Comparators ANA SGL SUP CMP QUAD
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ON Semiconductor 184304
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USD 0.2544
Multiples of: 1

Ncv29014 ChannelOpen Collector1.3 usGeneral Purpose500 nA7 mV36 V3 V  Smd/Smt- 40 C+ 125 C1 WTSSOP - 14 Reel16 mA2 mA
LMV331SQ3T2G


Comparator ICs LV SNGL CMPARTR SC70
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ON Semiconductor 181562
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USD 0.1288
Multiples of: 1

Lmv3311 ChannelOpen Drain General Purpose1 nA9 mV5 V2.7 V120 uA Smd/Smt + 150 C SC - 88A Reel  
AS339MTR-G1


Analog Comparators LP Quad Comparator 2.0mV 2.0 to 36V 2mV
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Diodes Incorporated 166840
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USD 0.1063
Multiples of: 4000

As339   General Purpose          SOIC - 14 Cut Tape  
LM393M/TR


Analog Comparators SOP-8 RoHS
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HGSEMI 131020
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USD 0.0491
Multiples of: 10

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LM393EDR2G


Analog Comparators COMP DUAL
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ON Semiconductor 116387
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USD 0.0874
Multiples of: 1

Lm393                Cut Tape  
LM2903AVQDRG4Q1


Comparator ICs Dual Diff Comparator
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Texas Instruments 114351
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USD 0.2403
Multiples of: 1

Lm2903 - Q12 ChannelOpen Drain0.3 usDifferential50 nA7 mV30 V2 V400 uA Smd/Smt- 40 C+ 125 C SOIC - 8Aec - Q100Reel6 mA 
LM2903DR


Analog Comparators Dual Diff Ind Temp
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Texas Instruments 76125
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USD 0.056
Multiples of: 5

Lm29032 ChannelRail - To - Rail300 nsDifferential50 nA7 mV36 V2 V500 uA Smd/Smt- 40 C+ 125 C SOIC - 8 Cut Tape6 mA 
LM339DT


Comparator; universal; 2÷36V; SMT; SO14; Comparators:4
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STMicroelectronics 7
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USD 0.0648
Multiples of: 1

  CMOS, DTL, ECL, MOS, Open - Collector, TTL                 
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