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

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Description Price 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 Stock No. 171-6229
Mfr. Part No.BU7250G-TR
BrandROHM
£0.468
Each (In a Pack of 20)
Units
Low Current CMOS Surface Mount SSOP Dual, Single Open Drain 1 0.75µs 5 1.8 → 5.5 V 2.9 x 1.6 x 1.1mm 2.9mm 1.6mm 1.1mm 80dB
RS Stock No. 146-1166
Mfr. Part No.MAX942CPA+
£2.687
Each (In a Tube of 50)
Units
General Purpose Through Hole PDIP Single - 2 - 8 3 V, 5 V 9.91 x 7.87 x 4.45mm 9.91mm 7.87mm 4.45mm 81.94dB
New
RS Stock No. 197-7577
Mfr. Part No.TLV3501AIDBVT
£1.597
Each (On a Reel of 250)
Units
High Speed - SOT-23 Dual, Single Push-Pull 1 - 6 5 V - - - - -
New
RS Stock No. 191-6969
Mfr. Part No.MAX902ESD+
£7.35
Each
Units
High Speed, Low Power Surface Mount SO Dual, Single TTL 2 10ns 14 5 10 V 8.75 x 4 x 1.5mm 8.75mm 4mm 1.5mm 75µV/V
New
RS Stock No. 191-3332
Mfr. Part No.MAX920EUK+T
£0.601
Each (On a Reel of 2500)
Units
Nano Power Surface Mount SOT-23 Single Open Drain 1 - 5 1.8 5.5 V 3 x 1.75 x 1.3mm 3mm 1.75mm 1.3mm 0.5mV/V
RS Stock No. 177-3173
Mfr. Part No.MCP6562T-E/MS
BrandMicrochip
£0.55
Each (In a Pack of 20)
Units
Rail to Rail Surface Mount MSOP Dual Push-Pull 2 56ns 8 - 3 x 3 x 0.95mm 3mm 3mm 0.95mm 66dB
RS Stock No. 738-7036
Mfr. Part No.MCP6567-E/MS
BrandMicrochip
£0.55
Each (In a Pack of 5)
Units
General Purpose Surface Mount MSOP Single Open Drain 2 - 8 1.8 → 5.5 V 3 x 3 x 0.95mm 3mm 3mm 0.95mm 65dB
RS Stock No. 787-8816
Mfr. Part No.NCS2202SQ2T2G
£0.443
Each (On a Tape of 10)
Units
Low Power Surface Mount SC-70 Single Open Drain 1 35µs 5 0.85 → 6 V 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm 65dB
RS Stock No. 760-9449
Mfr. Part No.TS3011ICT
£0.74
Each (In a Pack of 5)
Units
High Speed Surface Mount SC-70 Single Push-Pull 1 8ns 5 2.2 to 5 V 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm 74dB
RS Stock No. 787-8601
Mfr. Part No.LM2901VDR2G
£0.094
Each (On a Tape of 20)
Units
General Purpose Surface Mount SOIC Dual, Single CMOS, TTL 4 1.3µs 14 3 → 36 V 8.75 x 4 x 1.5mm 8.75mm 4mm 1.5mm -
New
RS Stock No. 191-3425
Mfr. Part No.MAX992EUA+
£1.454
Each (In a Pack of 5)
Units
- Surface Mount μMAX Dual, Single Open Drain 1 - 8 2.5 → 5.5 V 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 80dB
New
RS Stock No. 191-3331
Mfr. Part No.MAX912CSE+
£5.263
Each (In a Tube of 50)
Units
- Surface Mount SO Dual, Single TTL 2 - 16 5 V 10 x 4 x 1.5mm 10mm 4mm 1.5mm 110dB
RS Stock No. 732-0944
Mfr. Part No.TLC374MD
£0.65
Each (In a Pack of 5)
Units
General Purpose Surface Mount SOIC Dual, Single Open Collector, Open Drain 4 0.2µs 14 4 → 16 V 8.75 x 4 x 1.5mm 8.75mm 4mm 1.5mm -
RS Stock No. 172-3373
Mfr. Part No.TL331VSN4T3G
£0.38
Each (In a Pack of 25)
Units
Low Power Surface Mount TSOP Dual, Single CMOS, DTL, ECL, TTL 1 - 5 2 → 36 V 3.15 x 1.65 x 1mm 3.15mm 1.65mm 1mm -
RS Stock No. 145-3570
Mfr. Part No.LM2903VDR2G
£0.077
Each (On a Reel of 2500)
Units
General Purpose Surface Mount SOIC Dual, Single CMOS, DTL, ECL, MOS, TTL 2 1.5µs 8 2 → 36 V dc 5 x 4 x 1.5mm 5mm 4mm 1.5mm -
New
RS Stock No. 191-3330
Mfr. Part No.MAX9117EXK+T
£0.837
Each (On a Reel of 2500)
Units
Nano Power Surface Mount SC-70 Single Push-Pull - - 5 1.6 5.5 V 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm 0.5mV/V
RS Stock No. 168-1900
Mfr. Part No.BA2903FVM-TR
BrandROHM
£0.548
Each (In a Pack of 25)
Units
- Surface Mount MSOP Dual, Single Open Collector 2 1.3µs 8 36 V 2.9 x 2.8 x 0.75mm 2.9mm 2.8mm 0.75mm -
RS Stock No. 732-7217
Mfr. Part No.MAX933ESA+
£3.09
Each
Units
General Purpose Surface Mount SOIC Dual, Single CMOS, TTL 2 12µs 8 2.5 → 11 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm 0.2mV/V
RS Stock No. 165-8321
Mfr. Part No.LMV331SE-7
£0.072
Each (On a Reel of 3000)
Units
General Purpose Surface Mount SOT-353 Single Open Collector 1 - 5 2.7 → 5.5 V 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm -
RS Stock No. 732-0941
Mfr. Part No.TLV1391CDBVT
£0.134
Each (In a Pack of 5)
Units
General Purpose Surface Mount SOT-23 Single Open Collector 1 0.7µs 5 2 → 7 V 3.05 x 1.75 x 1.3mm 3.05mm 1.75mm 1.3mm -
Related Products
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