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. 171-5757
Mfr. Part No.LM393FVJ-E2
BrandROHM
PHP6.87
Each (On a Reel of 2500)
units
- Surface Mount TSSOP-BJ Dual, Single Open Collector 2 1µs 8 3 → 32 V 3 x 3 x 0.85mm 3mm 3mm 0.85mm -
RS Stock No. 171-5751
Mfr. Part No.LM2901FVJ-E2
BrandROHM
PHP16.492
Each (On a Reel of 2500)
units
- Surface Mount TSSOP-BJ Dual, Single Open Collector 4 1µs 14 3 → 32 V 3 x 3 x 0.85mm 3mm 3mm 0.85mm -
RS Stock No. 171-6311
Mfr. Part No.LM339FV-E2
BrandROHM
PHP13.133
Each (In a Pack of 25)
units
- Surface Mount SSOP-B Dual, Single Open Collector 4 1µs 14 3 → 32 V 3 x 4.4 x 1.15mm 3mm 4.4mm 1.15mm -
RS Stock No. 171-5807
Mfr. Part No.LM2903DT
BrandROHM
PHP13.194
Each (On a Reel of 2500)
units
- Surface Mount SOP-J Dual, Single Open Collector 2 1.3µs 8 2 → 36 V 4.9 x 3.9 x 1.37mm 4.9mm 3.9mm 1.37mm -
RS Stock No. 168-1970
Mfr. Part No.BA2901F-E2
BrandROHM
PHP21.438
Each (In a Pack of 25)
units
- Surface Mount SOP Dual, Single Open Collector 4 1.3µs 14 36 V 8.7 x 4.4 x 1.39mm 8.7mm 4.4mm 1.39mm -
RS Stock No. 171-6280
Mfr. Part No.LM2903FJ-E2
BrandROHM
PHP11.591
Each (In a Pack of 25)
units
- Surface Mount SOP-J Dual, Single Open Collector 2 1µs 8 3 → 32 V 4.9 x 3.9 x 1.37mm 4.9mm 3.9mm 1.37mm -
RS Stock No. 146-7275
Mfr. Part No.BU7232FVM-TR
BrandROHM
PHP19.86
Each (In a Pack of 25)
units
Low Voltage CMOS Surface Mount MSOP Single CMOS, Push-Pull 2 1.7µs 8 1.8 → 5.5 V 2.9 x 2.8 x 0.75mm 2.9mm 2.8mm 0.75mm 80dB
RS Stock No. 171-5752
Mfr. Part No.LM2903FJ-E2
BrandROHM
PHP9.016
Each (On a Reel of 2500)
units
- Surface Mount SOP-J Dual, Single Open Collector 2 1µs 8 3 → 32 V 4.9 x 3.9 x 1.37mm 4.9mm 3.9mm 1.37mm -
RS Stock No. 168-1984
Mfr. Part No.BA2903F-E2
BrandROHM
PHP20.40
Each (In a Pack of 25)
units
- Surface Mount SOP Dual, Single Open Collector 2 1.3µs 8 36 V 5 x 4.4 x 1.39mm 5mm 4.4mm 1.39mm -
RS Stock No. 171-6321
Mfr. Part No.BA2903YFVM-CTR
BrandROHM
PHP25.433
Each (In a Pack of 10)
units
- Surface Mount MSOP Dual, Single Open Collector 2 1.3µs 8 2 → 36 V 2.9 x 2.8 x 0.75mm 2.9mm 2.8mm 0.75mm -
RS Stock No. 178-0474
Mfr. Part No.BU5265SHFV-TR
BrandROHM
PHP20.564
Each (In a Pack of 20)
units
Dual CMOS Surface Mount HVSOF Dual, Single Push-Pull 1 - 5 +7 V 1.6 x 1.2 x 0.58mm 1.6mm 1.2mm 0.58mm 80dB
RS Stock No. 171-5779
Mfr. Part No.BU5255HFV-TR
BrandROHM
PHP12.08
Each (On a Reel of 3000)
units
Low Current CMOS Surface Mount HVSOF Dual, Single Push-Pull 1 1.6µs 5 1.8 → 5.5 V 1.6 x 1.2 x 0.58mm 1.6mm 1.2mm 0.58mm 80dB
RS Stock No. 177-9876
Mfr. Part No.BA2903YF-CE2
BrandROHM
PHP20.549
Each (On a Reel of 2500)
units
- Surface Mount SOP Single Open Collector 2 1.3µs 8 +36 V 5 x 4.4 x 1.39mm 5mm 4.4mm 1.39mm -
RS Stock No. 168-2004
Mfr. Part No.BU7232SF-E2
BrandROHM
PHP84.00
Each (In a Pack of 20)
units
Low Voltage CMOS Surface Mount SOP Single Full Swing, Push-Pull 2 - 8 5.5 V 5 x 4.4 x 1.39mm 5mm 4.4mm 1.39mm 80dB
RS Stock No. 171-5805
Mfr. Part No.BA2901SFV-E2
BrandROHM
PHP12.872
Each (On a Reel of 2500)
units
- Surface Mount SSOP Dual, Single Open Collector 4 1.3µs 14 2 → 36 V 5 x 4.4 x 1.15mm 5mm 4.4mm 1.15mm -
RS Stock No. 731-3482
Mfr. Part No.BA10339F-E2
BrandROHM
PHP14.242
Each (In a Pack of 10)
units
General Purpose Surface Mount SOP Dual, Single Open Collector 4 1.3µs 14 3 → 36 V 8.7 x 4.4 x 1.5mm 8.7mm 4.4mm 1.5mm -
RS Stock No. 171-6229
Mfr. Part No.BU7250G-TR
BrandROHM
PHP18.13
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. 171-5776
Mfr. Part No.BU7252F-E2
BrandROHM
PHP16.91
Each (On a Reel of 2500)
units
High Speed CMOS Surface Mount SOP Dual, Single Push-Pull 2 0.55µs 8 1.8 → 5.5 V 5 x 4.4 x 1.5mm 5mm 4.4mm 1.5mm 80dB
RS Stock No. 184-8575
Mfr. Part No.BA82903YF-CE2
BrandROHM
PHP24.076
Each (On a Reel of 2500)
units
- Surface Mount SOP Single - 2 1.3µs 8 2 → 36 V 5 x 4.4 x 1.5mm 5mm 4.4mm 1.5mm -
RS Stock No. 171-6247
Mfr. Part No.BU5265HFV-TR
BrandROHM
PHP15.704
Each (In a Pack of 25)
units
Push-Pull Output Surface Mount HVSOF Dual, Single Push-Pull 1 0.5µs 5 1.8 → 5.5 V 1.6 x 1.2 x 0.58mm 1.6mm 1.2mm 0.58mm 80dB