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. 145-3273
Mfr. Part No.LM393DG
kr 2,345
Each (In a Tube of 98)
Units
General Purpose Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 → 28 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm -
RS Stock No. 463-139
Mfr. Part No.LM393DG
kr 2,345
Each (In a Pack of 25)
Units
General Purpose Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 → 28 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm -
RS Stock No. 185-9050
Mfr. Part No.NCS2250SQ2T2G
kr 6,288
Each (In a Pack of 13)
Units
High Speed Surface Mount SC-88A Single Rail to Rail 1 - 5 1.8 → 5.5 V 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm 81dB
RS Stock No. 170-3426
Mfr. Part No.LM293DR2G
kr 0,86
Each (On a Reel of 2500)
Units
General Purpose Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 → 28 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm -
RS Stock No. 787-8608
Mfr. Part No.LM239DTBR2G
kr 1,068
Each (On a Tape of 20)
Units
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 Stock No. 689-9714
Mfr. Part No.LM293DR2G
kr 3,848
Each (In a Pack of 5)
Units
General Purpose Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 → 28 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm -
RS Stock No. 163-2416
Mfr. Part No.LM339DR2G
kr 0,86
Each (On a Reel of 2500)
Units
General Purpose Surface Mount SOIC Dual, Single Open Collector 4 1.3µs 14 5 → 28 V 8.75 x 4 x 1.5mm 8.75mm 4mm 1.5mm -
RS Stock No. 805-1365
Mfr. Part No.LM311DR2G
kr 3,119
Each (On a Tape of 25)
Units
General Purpose Surface Mount SOIC Dual, Single CMOS 1 200ns 8 36 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm -
RS Stock No. 122-0108
Mfr. Part No.LM2903DR2G
kr 0,645
Each (On a Reel of 2500)
Units
General Purpose Surface Mount SOIC Dual, Single Open Collector 2 1.5µs 8 3 to 28 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm -
RS Stock No. 689-9727
Mfr. Part No.LM393DR2G
kr 4,068
Each (In a Pack of 5)
Units
General Purpose Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 → 28 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm -
RS Stock No. 162-9349
Mfr. Part No.LM293DMR2G
kr 1,172
Each (On a Reel of 4000)
Units
General Purpose Surface Mount MSOP Dual, Single CMOS, DTL, ECL, MOS, TTL 2 1.5µs 8 2 → 36 V dc 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm -
RS Stock No. 172-3300
Mfr. Part No.TL331VSN4T3G
kr 1,827
Each (On a Reel of 3000)
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. 178-4707
Mfr. Part No.LM339NG
kr 4,945
Each (In a Tube of 25)
Units
General Purpose Through Hole PDIP Dual, Single Open Collector 4 1.3µs 14 5 → 28 V 19.56 x 6.6 x 3.68mm 19.56mm 6.6mm 3.68mm -
RS Stock No. 787-8611
Mfr. Part No.LM2903VDG
kr 1,171
Each (In a Pack of 14)
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 -
RS Stock No. 774-3470
Mfr. Part No.LM2901NG
kr 1,606
Each (In a Pack of 10)
Units
General Purpose Through Hole PDIP Dual, Single CMOS, TTL 4 1.3µs 14 36 V 19.56 x 6.6 x 3.68mm 19.56mm 6.6mm 3.68mm -
RS Stock No. 101-8987
Mfr. Part No.NE521DG
kr 34,583
Each (In a Tube of 55)
Units
General Purpose Surface Mount SOIC Dual - 2 - 14 - 8.75 x 4 x 1.5mm 8.75mm 4mm 1.5mm -
RS Stock No. 689-9718
Mfr. Part No.LM339DR2G
kr 3,39
Each (In a Pack of 5)
Units
General Purpose Surface Mount SOIC Dual, Single Open Collector 4 1.3µs 14 5 → 28 V 8.75 x 4 x 1.5mm 8.75mm 4mm 1.5mm -
RS Stock No. 805-7231
Mfr. Part No.NCV2200SN2T1G
kr 2,573
Each (In a Pack of 10)
Units
Low Voltage Surface Mount SOT-23 Single Complementary 1 16ns 5 0.85 → 6 V 3 x 1.5 x 1mm 3mm 1.5mm 1mm 65dB
RS Stock No. 163-2396
Mfr. Part No.LM239DR2G
kr 0,73
Each (On a Reel of 2500)
Units
General Purpose Surface Mount SOIC Dual, Single Open Collector 4 1.3µs 14 5 → 28 V 8.75 x 4 x 1.5mm 8.75mm 4mm 1.5mm -
RS Stock No. 145-3855
Mfr. Part No.LM239DTBR2G
kr 1,054
Each (On a Reel of 2500)
Units
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 -