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. 714-0830
Mfr. Part No.LM393D
kr 2,637
Each (In a Pack of 20)
Units
General Purpose Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 → 28 V 4.9 x 3.9 x 1.25mm 4.9mm 3.9mm 1.25mm -
RS Stock No. 178-5167
Mfr. Part No.LM393DT
kr 0,86
Each (On a Reel of 2500)
Units
General Purpose Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 V, 5 V, 9 V, 12 V, 15 V, 18 V, 24 V, 28 V 4.9 x 3.9 x 1.25mm 4.9mm 3.9mm 1.25mm -
RS Stock No. 165-5543
Mfr. Part No.TS391IYLT
kr 2,544
Each (On a Reel of 3000)
Units
General Purpose Surface Mount SOT-23 Dual, Single CMOS, DTL, ECL, TTL 1 1.3 ns/μs, 300 ns/μs 5 ±2 → ±36 V 1.75 x 3 x 1.3mm 1.75mm 3mm 1.3mm -
RS Stock No. 714-0833
Mfr. Part No.LM393DT
kr 2,902
Each (In a Pack of 20)
Units
General Purpose Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 V, 5 V, 9 V, 12 V, 15 V, 18 V, 24 V, 28 V 4.9 x 3.9 x 1.25mm 4.9mm 3.9mm 1.25mm -
RS Stock No. 880-5490
Mfr. Part No.TS391IYLT
kr 5,626
Each (In a Pack of 10)
Units
General Purpose Surface Mount SOT-23 Dual, Single CMOS, DTL, ECL, TTL 1 1.3 ns/μs, 300 ns/μs 5 ±2 → ±36 V 1.75 x 3 x 1.3mm 1.75mm 3mm 1.3mm -
RS Stock No. 168-6422
Mfr. Part No.TS393IDT
kr 2,902
Each (On a Reel of 2500)
Units
Low Power Surface Mount SOIC Dual, Single Open Drain 2 2.5µs 8 3 → 15 V 4.9 x 3.9 x 1.25mm 4.9mm 3.9mm 1.25mm 71dB
RS Stock No. 760-9461
Mfr. Part No.TS3022IST
kr 4,068
Each (In a Pack of 5)
Units
High Speed Surface Mount MSOP Single Push-Pull 2 0.009µs 8 1.8 → 5 V 3.2 x 3.1 x 0.95mm 3.2mm 3.1mm 0.95mm 67dB
RS Stock No. 168-6423
Mfr. Part No.LM239DT
kr 0,86
Each (On a Reel of 2500)
Units
General Purpose Surface Mount SOIC Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 8.75 x 4 x 1.65mm 8.75mm 4mm 1.65mm -
RS Stock No. 178-5160
Mfr. Part No.LM2903DT
kr 0,86
Each (On a Reel of 2500)
Units
General Purpose Surface Mount SOIC Dual, Single CMOS, DL, ECL, MOS, TTL 2 1.3µs 8 2 → 36 V 5 x 4 x 1.25mm 5mm 4mm 1.25mm -
RS Stock No. 165-5576
Mfr. Part No.LM219DT
kr 2,715
Each (On a Reel of 2500)
Units
General Purpose Surface Mount SOIC Single Open Collector, TTL 2 80ns 14 ±5 → ±15 V 8.75 x 4 x 1.65mm 8.75mm 4mm 1.65mm -
RS Stock No. 189-1853
Mfr. Part No.LM2904YST
kr 1,537
Each (On a Reel of 4000)
Units
Low Power Surface Mount MiniSO Single Swing 2 - 8 3 → 30 V 3.2 x 3.1 x 0.95mm 3.2mm 3.1mm 0.95mm -
RS Stock No. 714-7370
Mfr. Part No.TS3704IPT
kr 6,67
Each (In a Pack of 10)
Units
General Purpose Surface Mount TSSOP Dual, Single Push-Pull 4 2µs 14 3 → 15 V 5 x 4.4 x 1mm 5mm 4.4mm 1mm 80dB
RS Stock No. 426-118
Mfr. Part No.TS3021ICT
kr 5,172
Each (In a Pack of 5)
Units
General Purpose Surface Mount SC-70 Single Push-Pull 1 0.04µs 5 3 V 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm 79dB
RS Stock No. 714-0745
Mfr. Part No.LM2901DT
kr 1,436
Each (In a Pack of 20)
Units
General Purpose Surface Mount SOIC Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 8.75 x 4 x 1.65mm 8.75mm 4mm 1.65mm -
RS Stock No. 829-4408
Mfr. Part No.LM2903WYPT
kr 0,867
Each (In a Pack of 15)
Units
Low Power Surface Mount TSSOP Dual, Single CMOS, DTL, ECL, MOS, TTL 2 1.3µs 8 2 → 36 V 4.4 x 3 x 1.05mm 4.4mm 3mm 1.05mm -
RS Stock No. 168-6424
Mfr. Part No.TSM109AID
kr 3,42
Each (In a Tube of 100)
Units
General Purpose Surface Mount SOIC Dual, Single - 2 1.3µs 8 3 → 28 V 5 x 4 x 1.65mm 5mm 4mm 1.65mm -
New
RS Stock No. 192-4819
Mfr. Part No.TS880ILT
kr 11,91
Each (In a Pack of 10)
Units
Nano Power Surface Mount SOT-23 Single Rail to Rail 1 - 5 0.9 → 5.5 V 2.9 x 1.6 x 1.3mm 2.9mm 1.6mm 1.3mm 68dB
RS Stock No. 189-1969
Mfr. Part No.LM393QT
kr 3,131
Each (In a Pack of 25)
Units
Low Power Surface Mount DFN Dual, Single CMOS, DTL, ECL, MOS, TTL 2 1.3µs 8 2 → 36 V 2.05 x 2.05 x 0.7mm 2.05mm 2.05mm 0.7mm -
RS Stock No. 189-1959
Mfr. Part No.LM2904YST
kr 3,862
Each (In a Pack of 25)
Units
Low Power Surface Mount MiniSO Single Swing 2 - 8 3 → 30 V 3.2 x 3.1 x 0.95mm 3.2mm 3.1mm 0.95mm -
RS Stock No. 168-8081
Mfr. Part No.TS884IQ4T
kr 7,266
Each (On a Reel of 3000)
Units
Low Power Surface Mount QFN Single Push-Pull 4 - 16 1.1 → 5.5 V 3.15 x 3.15 x 0.95mm 3.15mm 3.15mm 0.95mm 78dB