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. 669-6216
FabrikantnummerMCP6541T-I/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. 876-7253
FabrikantnummerMCP6547-I/P
FabrikantMicrochip
0,429 €
Each (In a Tube of 60)
Aantal stuks
Low Power Through Hole PDIP Single Open Drain 2 - 8 1.6 → 5.5 V 10.16 x 7.11 x 5.33mm 10.16mm 7.11mm 5.33mm 70dB
RS-stocknr. 732-7267
FabrikantnummerMAX995ESD+
FabrikantMaxim Integrated
2,79 €
Each
Aantal stuks
Low Power Surface Mount SOIC Dual, Single Push-Pull 4 0.04µs 14 2.5 → 5.5 V 8.75 x 4 x 1.5mm 8.75mm 4mm 1.5mm 80dB
RS-stocknr. 165-5276
FabrikantnummerLMV331ICT
0,156 €
Each (On a Reel of 3000)
Aantal stuks
Low Voltage Surface Mount SC-70 Single Open Drain 1 - 5 2.7 → 5 V 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm -
RS-stocknr. 167-7189
FabrikantnummerMAX9095AUD+
FabrikantMaxim Integrated
1,024 €
Each (In a Tube of 96)
Aantal stuks
General Purpose Surface Mount TTSOP Single Open Drain 1 - 14 -0.3 → 6 V 5.1 x 4.5 x 0.95mm 5.1mm 4.5mm 0.95mm -
RS-stocknr. 165-9279
FabrikantnummerMAX921ESA+
FabrikantMaxim Integrated
3,062 €
Each (In a Tube of 100)
Aantal stuks
General Purpose Surface Mount SOIC Dual, Single Push-Pull 1 12µs 8 2.5 → 11 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm 0.2mV/V
RS-stocknr. 799-8323
FabrikantnummerMAX924ESE+
FabrikantMaxim Integrated
3,55 €
Each
Aantal stuks
Low Voltage Surface Mount SOIC Single Push-Pull 1 12µs 16 2.5 → 11 V 10 x 4 x 1.5mm 10mm 4mm 1.5mm 0.1mV/V
RS-stocknr. 787-8605
FabrikantnummerLM2901VDTBR2G
FabrikantON Semiconductor
0,338 €
Each (On a Tape of 20)
Aantal stuks
General Purpose Surface Mount TSSOP Dual, Single CMOS, TTL 4 1.3µs 14 3 → 36 V 5.1 x 4.5 x 1.05mm 5.1mm 4.5mm 1.05mm -
RS-stocknr. 162-5384
FabrikantnummerLM339ADR
0,086 €
Each (On a Reel of 2500)
Aantal stuks
General Purpose Surface Mount SOIC Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 8.65 x 3.91 x 1.58mm 8.65mm 3.91mm 1.58mm -
RS-stocknr. 787-8721
FabrikantnummerMC3302DR2G
FabrikantON Semiconductor
0,412 €
Each (In a Pack of 10)
Aantal stuks
General Purpose Surface Mount SOIC Dual, Single CMOS, TTL 4 1.3µs 14 3 → 30 V 8.75 x 4 x 1.5mm 8.75mm 4mm 1.5mm -
RS-stocknr. 145-4758
FabrikantnummerLMV331SQ3T2G
FabrikantON Semiconductor
0,135 €
Each (On a Reel of 3000)
Aantal stuks
General Purpose Surface Mount SC-70 Single Open Drain 1 - 5 2.7 → 5 V 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm -
RS-stocknr. 917-3526
FabrikantnummerLT1719CS8#PBF
FabrikantAnalog Devices
2,465 €
Each (In a Tube of 100)
Aantal stuks
Low Power Surface Mount SOIC Dual, Single - 1 - 8 3 V, 5 V 5 x 3.99 x 1.5mm 5mm 3.99mm 1.5mm 70dB
RS-stocknr. 171-5751
FabrikantnummerLM2901FVJ-E2
FabrikantROHM
0,304 €
Each (On a Reel of 2500)
Aantal stuks
- Surface Mount TSSOP-BJ Dual, Single Open Collector 4 1µs 14 3 → 32 V 3 x 3 x 0.85mm 3mm 3mm 0.85mm -
RS-stocknr. 160-1740
FabrikantnummerAD8469WBRMZ
FabrikantAnalog Devices
1,585 €
Each (In a Tube of 50)
Aantal stuks
High Speed Surface Mount MSOP Single CMOS, TTL 1 45 → 75ns 8 2.5 → 5.5 V 3.2 x 3.2 x 0.95mm 3.2mm 3.2mm 0.95mm 50 (Min.)dB
Nieuw
RS-stocknr. 189-9150
FabrikantnummerMAX9140EXK+T
FabrikantMaxim Integrated
1,72 €
Each (In a Pack of 5)
Aantal stuks
Low Power Surface Mount SC-70 Single Push-Pull 1 40ns 5 2.7 → 5.5 V 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm 80µV/V
RS-stocknr. 919-9890
FabrikantnummerLT6700CS6-1#TRMPBF
FabrikantAnalog Devices
1,649 €
Each (On a Reel of 500)
Aantal stuks
General Purpose Surface Mount TSOT-23 Single Open Collector 2 24µs 6 1.4 → 18 V 2.9 x 1.75 x 0.9mm 2.9mm 1.75mm 0.9mm -
RS-stocknr. 162-6586
FabrikantnummerLMV331IDCKR
0,216 €
Each (On a Reel of 3000)
Aantal stuks
Low Power Surface Mount SC-70 Single Open Collector 1 - 5 2.7 → 5.5 V 2.15 x 1.4 x 1mm 2.15mm 1.4mm 1mm -
RS-stocknr. 760-9443
FabrikantnummerTS3011ILT
2,23 €
Each (In a Pack of 5)
Aantal stuks
High Speed Surface Mount SOT-23 Single Push-Pull 1 8ns 5 2.2 → 5 V 3 x 1.75 x 1.3mm 3mm 1.75mm 1.3mm 74dB
RS-stocknr. 517-1523
FabrikantnummerLMV339ID
0,878 €
Each (In a Pack of 10)
Aantal stuks
General Purpose Surface Mount SOIC Single Open Collector 4 - 14 3 V, 5 V 8.65 x 3.91 x 1.58mm 8.65mm 3.91mm 1.58mm -
RS-stocknr. 649-481
FabrikantnummerTLC3702CP
2,21 €
Each
Aantal stuks
Low Power Through Hole PDIP Single Push-Pull 2 - 8 5 V 9.81 x 6.35 x 4.57mm 9.81mm 6.35mm 4.57mm 84dB
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