Comparators

What is a Comparator?

A Comparator is a circuit which accepts two voltages or currents and then switches the output showing which is bigger. Comparators are found in components like analogue to digital converters. Comparators are like operational amplifiers except a comparator is designed to operate with positive feedback and output saturated at one power rail or the other.

How a Comparator works.
A comparator samples two input pins and turns on the output when identifying a difference or similarity.
An example is when you have a minus voltage on the inverting Pin and a plus non-inverting. When the voltage, on the non-inverting equals the inverting voltage the Pin turns on. Normally the output Pin is open and switches to ground when the comparator is activated.

Why use a Comparator?
The primary use of a comparator is converting analog to digital (ADC). Two supply voltage are applied and the difference determines a high or low digital signal.

Types of Comparator.
Current sense, Differential / Dual differential, Dual / Dual CMOS, Dual voltage / General voltage, General purpose, Ground sense, High speed / high-speed CMOS, Low current CMOS, Low power / low voltage / low-power CMOS, Micro power, Nano power, Precision, Push/pull output, Quad differential, Rail to rail, Voltage, Window.

Mounting Types.
Surface mount
Through hole
Comparator power supply types.
Dual
Single

Various package types, pins, sizes, channels per chip, PSRR (power supply rejection ratio), CMRR (common mode rejection ratio) are all available.

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Omschrijving Prijs Comparator Type Mounting Type Package Type Power Supply Type Output Type Number of Channels per Chip Typical Response Time Pin Count Typical Single Supply Voltage Dimensions Length Width Height Typical CMRR
RS-stocknr. 738-7045
FabrikantnummerMCP6569-E/ST
FabrikantMicrochip
€ 1,15
Each (In a Pack of 2)
Aantal stuks
General Purpose Surface Mount TSSOP Single Open Drain 4 - 14 1.8 to 5.5 V 5.1 x 4.5 x 1.05mm 5.1mm 4.50mm 1.05mm 65dB
RS-stocknr. 669-6275
FabrikantnummerMCP6562-E/SN
FabrikantMicrochip
€ 0,652
Each (In a Pack of 5)
Aantal stuks
General Purpose Surface Mount SOIC Single Push-Pull 2 - 8 3 V, 5 V 4.9 x 3.9 x 1.25mm 4.9mm 3.9mm 1.25mm 66dB
RS-stocknr. 727-2334
FabrikantnummerMCP65R41T-1202E/CHY
FabrikantMicrochip
€ 0,252
Each (In a Pack of 10)
Aantal stuks
General Purpose Surface Mount SOT-23 Single Push-Pull 1 0.85µs 6 1.8 to 5.5 V 3.1 x 1.8 x 1.3mm 3.1mm 1.8mm 1.3mm 70dB
RS-stocknr. 121-6493
FabrikantnummerNCS2200SN1T1G
FabrikantON Semiconductor
€ 0,268
Each (On a Reel of 3000)
Aantal stuks
Low Voltage Surface Mount SOT-23 Single Rail to Rail 1 - 5 0.85 → 6 V 3 x 1.5 x 1mm 3mm 1.5mm 1mm 65dB
RS-stocknr. 165-4794
FabrikantnummerMCP6562-E/SN
FabrikantMicrochip
€ 0,496
Each (In a Tube of 100)
Aantal stuks
General Purpose Surface Mount SOIC Single Push-Pull 2 - 8 3 V, 5 V 4.9 x 3.9 x 1.25mm 4.9mm 3.9mm 1.25mm 66dB
RS-stocknr. 165-3301
FabrikantnummerMCP65R41T-1202E/CHY
FabrikantMicrochip
€ 0,25
Each (On a Reel of 3000)
Aantal stuks
General Purpose Surface Mount SOT-23 Single Push-Pull 1 0.85µs 6 1.8 → 5.5 V 3.1 x 1.8 x 1.3mm 3.1mm 1.8mm 1.3mm 70dB
RS-stocknr. 517-2396
FabrikantnummerLM311D
€ 0,439
Each (In a Pack of 20)
Aantal stuks
General Purpose Surface Mount SOIC Dual, Single Open Collector/Emitter 1 0.165µs 8 5 → 28 V 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm -
RS-stocknr. 920-3475
FabrikantnummerLM311D
€ 0,399
Each (In a Tube of 75)
Aantal stuks
General Purpose Surface Mount SOIC Dual, Single Open Collector/Emitter 1 0.165µs 8 5 → 28 V 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm -
RS-stocknr. 168-8801
FabrikantnummerTS881ILT
€ 0,464
Each (On a Reel of 3000)
Aantal stuks
Low Power Surface Mount SOT-23 Single Push-Pull 1 160ns 5 0.85 → 5.5 V 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm 78dB
RS-stocknr. 145-7092
FabrikantnummerLM139J
€ 9,729
Each (In a Tube of 25)
Aantal stuks
Differential Through Hole CDIP Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 19.56 x 6.92 x 4.57mm 19.56mm 6.92mm 4.57mm -
RS-stocknr. 436-8417
FabrikantnummerLM139J
€ 10,87
Each
Aantal stuks
Differential Through Hole CDIP Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 19.56 x 6.92 x 4.57mm 19.56mm 6.92mm 4.57mm -
RS-stocknr. 528-157
FabrikantnummerLM311DR
€ 0,334
Each (In a Pack of 25)
Aantal stuks
General Purpose Surface Mount SOIC Dual, Single Open Collector/Emitter 1 0.165µs 8 5 → 28 V 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm -
RS-stocknr. 860-7404
FabrikantnummerTS881ILT
€ 0,523
Each (In a Pack of 10)
Aantal stuks
Low Power Surface Mount SOT-23 Single Push-Pull 1 160ns 5 0.85 → 5.5 V 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm 78dB
RS-stocknr. 121-8934
FabrikantnummerTLV3501AID
€ 2,566
Each (In a Tube of 75)
Aantal stuks
High Speed Surface Mount SOIC Single Push-Pull 1 - 8 3 V, 5 V 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 70dB
RS-stocknr. 162-6568
FabrikantnummerLM393ADGKR
€ 0,086
Each (On a Reel of 2500)
Aantal stuks
General Purpose Surface Mount VSSOP Dual, Single Open Collector 2 1.3µs 8 2 → 36 V 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm -
RS-stocknr. 669-6212
FabrikantnummerMCP6541T-E/OT
FabrikantMicrochip
€ 0,289
Each (In a Pack of 10)
Aantal stuks
Low Power Surface Mount SOT-23 Single Push-Pull 1 - 5 3 V, 5 V 3.1 x 1.8 x 1.3mm 3.1mm 1.8mm 1.3mm 70dB
RS-stocknr. 761-8370
FabrikantnummerLT1716IS5#TRMPBF
FabrikantAnalog Devices
€ 1,86
Each
Aantal stuks
Low Power Surface Mount TSOT-23 Dual, Single Push-Pull 1 - 5 2.7 → 44 V 2.9 x 1.75 x 0.9mm 2.9mm 1.75mm 0.9mm 110dB
RS-stocknr. 162-9865
FabrikantnummerTLV1701AIDBVT
€ 0,733
Each (On a Reel of 250)
Aantal stuks
Low Power Surface Mount SOT-23 Dual, Single Open Collector 1 - 5 2.2 → 36 V 3.05 x 1.75 x 1.3mm 3.05mm 1.75mm 1.3mm -
RS-stocknr. 162-7844
FabrikantnummerTLV3201AIDBVT
€ 0,856
Each (On a Reel of 250)
Aantal stuks
Low Power Surface Mount SOT-23 Single Push-Pull 1 2.9ns 5 2.7 → 5.5 V 3.05 x 1.75 x 1.3mm 3.05mm 1.75mm 1.3mm 70dB
RS-stocknr. 100-0752
FabrikantnummerLM393D
€ 0,267
Each (In a Tube of 75)
Aantal stuks
General Purpose Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 → 28 V 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm -
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