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. 166-1860
Mfr. Part No.LM2903N
$0.455
Each (In a Tube of 50)
units
General Purpose Through Hole PDIP Dual, Single Open Collector 2 0.2 μs, 1.4 μs 8 2 → 36 V 9.6 x 6.4 x 3.4mm 9.6mm 6.4mm 3.4mm -
RS Stock No. 759-9386
Mfr. Part No.LM319MX
$0.783
Each (In a Pack of 10)
units
High Speed Surface Mount SOP Dual, Single Open Collector 2 0.08µs 14 5 V 8.76 x 4.2 x 1.65mm 8.76mm 4.2mm 1.65mm -
RS Stock No. 169-8573
Mfr. Part No.LM319MX
$0.319
Each (On a Reel of 3000)
units
High Speed Surface Mount SOP Dual, Single Open Collector 2 0.08µs 14 5 V 8.76 x 4.2 x 1.65mm 8.76mm 4.2mm 1.65mm -
RS Stock No. 806-2826
Mfr. Part No.LM339AN
$1.075
Each (In a Tube of 25)
units
General Purpose Through Hole PDIP Dual, Single Open Collector 4 1.3µs 14 2 → 36 V 19.8 x 6.4 x 3.25mm 19.8mm 6.4mm 3.25mm -
RS Stock No. 162-9391
Mfr. Part No.MC3302DR2G
$0.456
Each (On a Reel of 2500)
units
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 Stock No. 787-8721
Mfr. Part No.MC3302DR2G
$0.806
Each (In a Pack of 10)
units
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 Stock No. 163-2420
Mfr. Part No.LM393DR2G
$0.125
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. 787-8481
Mfr. Part No.NCS2220AMUT1G
$1.82
Each (On a Tape of 5)
units
Low Power Surface Mount UDFN Single Rail to Rail 2 - 8 0.85 → 6 V 1.6 x 1.6 x 0.5mm 1.6mm 1.6mm 0.5mm 70dB
RS Stock No. 805-7231
Mfr. Part No.NCV2200SN2T1G
$1.354
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. 787-8241
Mfr. Part No.LM2903DMR2G
$0.542
Each (In a Pack of 20)
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. 166-1626
Mfr. Part No.FAN156L6X
$0.234
Each (On a Reel of 5000)
units
Low Voltage Surface Mount MicroPak Single Push-Pull 1 0.0054µs 6 5.5 V 1.45 x 1 x 0.5mm 1.45mm 1mm 0.5mm 60dB
RS Stock No. 185-9050
Mfr. Part No.NCS2250SQ2T2G
$1.208
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. 185-8088
Mfr. Part No.NCS2250SN2T1G
$0.398
Each (On a Reel of 3000)
units
High Speed Surface Mount TSOP Single Rail to Rail 1 - 5 1.8 → 5.5 V 3.15 x 1.65 x 1mm 3.15mm 1.65mm 1mm 81dB
RS Stock No. 166-2417
Mfr. Part No.LM2901MX
$0.324
Each (On a Reel of 3000)
units
General Purpose Surface Mount SOP Dual, Single Open Collector 4 0.3 μs, 1.3 μs 14 2 → 36 V 8.76 x 4.2 x 1.65mm 8.76mm 4.2mm 1.65mm -
RS Stock No. 787-8633
Mfr. Part No.LM293DMR2G
$0.607
Each (In a Pack of 20)
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. 787-8620
Mfr. Part No.LM2903VDR2G
$0.616
Each (In a Pack of 20)
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. 787-8608
Mfr. Part No.LM239DTBR2G
$0.606
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. 162-9353
Mfr. Part No.LM339DTBR2G
$0.234
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 -
RS Stock No. 787-8829
Mfr. Part No.NCV2903DR2G
$0.678
Each (On a Tape of 20)
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. 145-3123
Mfr. Part No.LM2901DG
$0.508
Each (In a Tube of 55)
units
General Purpose Surface Mount SOIC Dual, Single CMOS, TTL 4 1.3µs 14 36 V 8.75 x 4 x 1.5mm 8.75mm 4mm 1.5mm -