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. 806-2807
Mfr. Part No.LM319N
PHP23.981
Each (In a Tube of 25)
units
General Purpose Through Hole PDIP Single Open Collector 2 80ns 14 5 V 19.8 x 6.4 x 3.25mm 19.8mm 6.4mm 3.25mm -
RS Stock No. 534-2999
Mfr. Part No.LM392N/NOPB
PHP74.40
Each
units
Low Power Through Hole MDIP - - - - 8 - 9.27 x 6.35 x 3.3mm 9.27mm 6.35mm 3.3mm -
RS Stock No. 732-8125
Mfr. Part No.MAX9601EUP+
PHP430.39
Each
units
High Speed Surface Mount TSSOP Dual Differential 2 0.0002µs 20 - 6.6 x 4.5 x 0.95mm 6.6mm 4.50mm 0.95mm 70dB
RS Stock No. 923-5741
Mfr. Part No.MAX917EUK+T
PHP78.318
Each (On a Reel of 2500)
units
Low Power Surface Mount SOT-23 Single Push-Pull 1 6µs 5 1.8 → 5.5 V 3 x 1.75 x 1.3mm 3mm 1.75mm 1.3mm -
RS Stock No. 912-7514
Mfr. Part No.AD8561ANZ
PHP228.38
Each (In a Tube of 50)
units
General Purpose Through Hole PDIP Dual, Single Complementary 1 - 8 5 V, 9 V 9.27 x 7.24 x 3.43mm 9.27mm 7.24mm 3.43mm 85dB
RS Stock No. 545-7120
Mfr. Part No.LTC1440CN8#PBF
PHP204.23
Each
units
Low Power Through Hole PDIP Dual, Single - 1 - 8 3 9 V 10.16 x 6.48 x 3.3mm 10.16mm 6.48mm 3.3mm 80dB
RS Stock No. 536-1300
Mfr. Part No.LM319M/NOPB
PHP66.36
Each
units
High Speed Surface Mount SOIC Dual, Single Open Collector 2 0.08µs 14 9 → 28 V 8.64 x 3.91 x 1.45mm 8.64mm 3.91mm 1.45mm -
RS Stock No. 436-8417
Mfr. Part No.LM139J
PHP728.97
Each
units
Differential Through Hole CDIP Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 19.56 x 6.92 x 4.57mm 19.56mm 6.92mm 4.57mm -
RS Stock No. 124-4526
Mfr. Part No.LM311N/NOPB
PHP36.476
Each (In a Pack of 10)
units
Voltage Through Hole PDIP Single Single Ended 1 200ns 8 Maximum of 36 V 10.16 x 6.6 x 4.57mm 10.16mm 6.6mm 4.57mm -
RS Stock No. 153-3522
Mfr. Part No.LTC1440CN8#PBF
PHP226.316
Each (In a Tube of 50)
units
Low Power Through Hole PDIP Dual, Single - 1 - 8 3 9 V 10.16 x 6.48 x 3.3mm 10.16mm 6.48mm 3.3mm 80dB
RS Stock No. 146-1035
Mfr. Part No.MAX934ESE+
PHP194.481
Each (In a Tube of 50)
units
General Purpose Surface Mount SOIC Dual, Single CMOS, TTL 4 12µs 16 2.5 → 11 V 10 x 4 x 1.5mm 10mm 4mm 1.5mm 0.2mV/V
RS Stock No. 732-7214
Mfr. Part No.MAX934ESE+
PHP228.44
Each
units
General Purpose Surface Mount SOIC Dual, Single CMOS, TTL 4 12µs 16 2.5 → 11 V 10 x 4 x 1.5mm 10mm 4mm 1.5mm 0.2mV/V
RS Stock No. 528-365
Mfr. Part No.LM2901DR
PHP15.278
Each (In a Pack of 25)
units
Differential 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 Stock No. 761-8361
Mfr. Part No.LT1671CS8#PBF
PHP207.62
Each
units
High Speed Surface Mount SOIC Dual, Single TTL 1 - 8 5 V 5.004 x 3.988 x 1.498mm 5mm 3.988mm 1.498mm 100dB
RS Stock No. 866-0219
Mfr. Part No.LM311N/NOPB
PHP36.476
Each (In a Tube of 40)
units
General Purpose Through Hole PDIP Dual, Single DTL, MOS, RTL, TTL 1 200ns 8 5 V 10.16 x 6.6 x 4.57mm 10.16mm 6.6mm 4.57mm -
RS Stock No. 145-7305
Mfr. Part No.LM2901D
PHP18.522
Each (In a Tube of 50)
units
Differential 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 Stock No. 121-8745
Mfr. Part No.LM392N/NOPB
PHP62.921
Each (In a Tube of 40)
units
Low Power Through Hole MDIP - - - - 8 - 9.27 x 6.35 x 3.3mm 9.27mm 6.35mm 3.3mm -
RS Stock No. 523-8711
Mfr. Part No.AD8561ANZ
PHP297.68
Each
units
General Purpose Through Hole PDIP Dual, Single Complementary 1 - 8 5 V, 9 V 9.27 x 7.24 x 3.43mm 9.27mm 7.24mm 3.43mm 85dB
RS Stock No. 145-7092
Mfr. Part No.LM139J
PHP640.966
Each (In a Tube of 25)
units
Differential Through Hole CDIP Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 19.56 x 6.92 x 4.57mm 19.56mm 6.92mm 4.57mm -
RS Stock No. 145-6795
Mfr. Part No.LT1671CS8#PBF
PHP140.471
Each (In a Tube of 100)
units
High Speed Surface Mount SOIC Dual, Single TTL 1 - 8 5 V 5.004 x 3.988 x 1.498mm 5mm 3.988mm 1.498mm 100dB
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Comparator ICs from ROHM meet all types, such as bipolar, CMOS, ground sense (single supply), dual supply, high-voltage resistance, low noise, low saturation, low current consumption, and input/output full swing.
Comparator ICs from ROHM meet all types, such ...
Description:
Comparator ICs from ROHM meet all types, such as bipolar, CMOS, ground sense (single supply), dual supply, high-voltage resistance, low noise, low saturation, low current consumption, and input/output full swing.
High-Speed Comparators, with fast response timesLow-Power Comparators with ...
Description:
High-Speed Comparators, with fast response timesLow-Power Comparators with operating currents as low as 210nAHigh-Temperature qualified devicesAutomotive-grade Comparators are AEC-Q100 and AEC-Q101 qualified.