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庫存編號 165-4532
製造零件編號MAX944ESD+
HK$44.531
毎管:50 個
單位
Low Power Surface Mount SOIC Single Push-Pull 4 - 14 2.7 → 5.5 V 8.75 x 4 x 1.5mm 8.75mm 4mm 1.5mm 80µV/V
RS庫存編號 533-8388
製造零件編號LMV339M/NOPB
HK$13.25
單位
General Purpose Surface Mount SOIC Single Open Collector 4 - 14 3 V 8.64 x 3.91 x 1.45mm 8.64mm 3.91mm 1.45mm -
RS庫存編號 761-9014
製造零件編號LTC1440IS8#PBF
HK$34.90
單位
Low Power Surface Mount SOIC Dual, Single CMOS, TTL 1 - 8 2 to 11 V 5.004 x 3.988 x 1.498mm 5mm 3.988mm 1.498mm 0.1mV/V
RS庫存編號 356-9732
製造零件編號TLC3704ID
HK$14.59
單位
Low Power Surface Mount SOIC Single Push-Pull 4 2.7µs 14 5 V 8.65 x 3.91 x 1.58mm 8.65mm 3.91mm 1.58mm 84dB
RS庫存編號 189-1843
製造零件編號LM239APT
HK$3,503.50
毎卷:2500 個
Reel(s)
Low Power Surface Mount TSSOP Dual, Single CMOS, DTL, ECL, MOS, TTL 4 1.3µs 14 2 → 32 V 5.1 x 4.5 x 1.05mm 5.1mm 4.5mm 1.05mm -
RS庫存編號 709-5339
製造零件編號CMP04FSZ
HK$131.64
單位
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 100dB
RS庫存編號 177-2934
製造零件編號MIC842HYC5-TR
BrandMicrochip
HK$3.64
個 (在毎卷:3000)
單位
Voltage Surface Mount SC-70 Single Push-Pull 1 12µs 5 - 1.8 x 1.15 x 0.8mm 1.8mm 1.15mm 0.8mm -
RS庫存編號 877-2756
製造零件編號LM311DT
HK$2.94
/個 (每包:25個)
單位
General Purpose Surface Mount SOIC Dual, Single DTL, RTL, TTL 1 200ns 8 5 V 5 x 4 x 1.65mm 5mm 4mm 1.65mm -
RS庫存編號 165-4625
製造零件編號MCP6541T-I/OT
BrandMicrochip
HK$2.535
個 (在毎卷:3000)
單位
Low Power Surface Mount SOT-23 Single Push-Pull 1 - 5 3 V, 5 V 3.1 x 1.8 x 1.3mm 3.1mm 1.8mm 1.3mm 70dB
RS庫存編號 761-6176
製造零件編號LMC7221AIM5/NOPB
HK$13.602
/個 (每包:5個)
單位
Low Power Surface Mount SOT-23 Dual Open Drain 1 4µs 5 - 2.92 x 1.6 x 1.02mm 2.92mm 1.6mm 1.02mm 75dB
RS庫存編號 759-0140
製造零件編號AD96687BQ
HK$152.37
單位
High Speed Through Hole PDIP Dual ECL 2 0.0025µs 16 - 21.34 x 7.87 x 3.56mm 21.34mm 7.87mm 3.56mm 90dB
RS庫存編號 165-9231
製造零件編號MAX9601EUP+
HK$98.61
毎管:74 個
單位
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庫存編號 534-4254
製造零件編號LMC6762BIM/NOPB
HK$21.97
單位
General Purpose Surface Mount SOIC Single Push-Pull 2 - 8 3 → 12 V 4.9 x 3.9 x 1.45mm 4.9mm 3.9mm 1.45mm 75dB
RS庫存編號 402-790
製造零件編號MCP6541-I/P
BrandMicrochip
HK$3.773
/個 (每包:10個)
單位
Low Power Through Hole PDIP Single Push-Pull 1 - 8 3 V, 5 V 9.27 x 6.35 x 3.3mm 9.27mm 6.35mm 3.3mm 70dB
全新
RS庫存編號 191-4010
製造零件編號MAX997EUA+
HK$30.409
毎管:50 個
單位
High Speed, Low Power Surface Mount μMAX Single CMOS, TTL 1 - 8 2.7 5.5 V 3.1 x 3.1 x 0.95mm 3.1mm 3.1mm 0.95mm 1 (Maximum)mV/V
RS庫存編號 822-5998
製造零件編號LT6700CS6-2#TRMPBF
HK$24.184
/個 (每包:5個)
單位
Low Voltage Surface Mount TSOT-23 Single Open Collector 2 2.2µs 6 1.4 → 18 V 2.9 x 1.5 x 0.9mm 2.9mm 1.5mm 0.9mm -
RS庫存編號 912-6766
製造零件編號MCP6564-E/ST
BrandMicrochip
HK$10.065
毎管:96 個
單位
General Purpose Surface Mount TSSOP Single Push-Pull 4 0.02µs 14 1.8 → 5.5 V 5.1 x 4.5 x 1.05mm 5.1mm 4.5mm 1.05mm 65dB
RS庫存編號 145-6795
製造零件編號LT1671CS8#PBF
HK$22.394
毎管:100 個
單位
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庫存編號 165-9116
製造零件編號MAX962ESA+
HK$115.721
毎管:100 個
單位
High Speed Surface Mount SOIC Single - 2 - 8 3 V, 5 V 5 x 4 x 1.5mm 5mm 4mm 1.5mm 80dB
RS庫存編號 184-8660
製造零件編號BA2903YFV-CE2
BrandROHM
HK$4.637
/個 (每包:10個)
單位
- Surface Mount SSOP Single - 2 1.3µs 8 2 → 36 V 4.4 x 3 x 1.15mm 4.4mm 3mm 1.15mm -