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 mount
Through hole
Comparator power supply types.
Dual
Single

Various package types, pins, sizes, channels per chip, PSRR (power supply rejection ratio), CMRR (common mode rejection ratio) are all available.

...
Voir plus Voir moins

Filtres

Afficher 1 - 20 des 1119 produits
Nombre de résultats par page
Description Prix 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
N° de stock RS 533-8388
Référence fabricantLMV339M/NOPB
1,39 €
Each
Unité
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 -
N° de stock RS 145-6529
Référence fabricantLMV339M/NOPB
1,199 €
Each (In a Tube of 55)
Unité
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 -
N° de stock RS 919-9364
Référence fabricantLT6703HVIS5-3#TRMPBF
1,339 €
Each (On a Reel of 500)
Unité
Low Voltage Surface Mount TSOT-23 Single Open Collector 1 - 5 1.4 → 18 V 2.9 x 1.75 x 0.9mm 2.9mm 1.75mm 0.9mm -
N° de stock RS 121-8871
Référence fabricantLM393M/NOPB
0,869 €
Each (In a Tube of 95)
Unité
General Purpose Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 to 28 V 4.9 x 3.9 x 1.45mm 4.9mm 3.9mm 1.45mm -
N° de stock RS 796-7997
Référence fabricantLM111JG
17,57 €
Each (In a Pack of 2)
Unité
General Purpose Through Hole CDIP Single Open Collector, Open Drain 1 115 ns, 165 ns 8 5 V 10.16 x 7.11 x 5.08mm 10.16mm 7.11mm 5.08mm -
N° de stock RS 528-353
Référence fabricantLM2903DR
0,256 €
Each (In a Pack of 25)
Unité
Differential Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 → 28 V 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm -
N° de stock RS 121-9135
Référence fabricantTL331IDBVR
0,208 €
Each (On a Reel of 3000)
Unité
General Purpose Surface Mount SOT-23 Dual, Single Open Collector 1 1.3µs 5 3 to 28 V 2.9 x 1.6 x 1.15mm 2.9mm 1.6mm 1.15mm -
N° de stock RS 536-1388
Référence fabricantLM393M/NOPB
2,33 €
Each
Unité
General Purpose Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 → 28 V 4.9 x 3.9 x 1.45mm 4.9mm 3.9mm 1.45mm -
N° de stock RS 922-2350
Référence fabricantLM111JG
14,006 €
Each (In a Tube of 13)
Unité
General Purpose Through Hole CDIP Single Open Collector, Open Drain 1 115 ns, 165 ns 8 5 V 10.16 x 7.11 x 5.08mm 10.16mm 7.11mm 5.08mm -
N° de stock RS 661-2577
Référence fabricantLM239PWR
0,281 €
Each (In a Pack of 10)
Unité
Differential Surface Mount TSSOP Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 5 x 4.4 x 1.15mm 5mm 4.4mm 1.15mm -
N° de stock RS 761-8908
Référence fabricantLT6703HVIS5-3#TRMPBF
3,34 €
Each
Unité
Low Voltage Surface Mount TSOT-23 Single Open Collector 1 - 5 1.4 → 18 V 2.9 x 1.75 x 0.9mm 2.9mm 1.75mm 0.9mm -
N° de stock RS 661-2921
Référence fabricantTLV3401ID
2,018 €
Each (In a Pack of 5)
Unité
Low Power Surface Mount SOIC Dual, Single Open Drain 1 - 8 3 → 15 V 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 88dB
N° de stock RS 145-6672
Référence fabricantTLV3401ID
1,71 €
Each (In a Tube of 75)
Unité
Low Power Surface Mount SOIC Dual, Single Open Drain 1 - 8 3 → 15 V 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm 88dB
N° de stock RS 661-2668
Référence fabricantTL331IDBVR
0,418 €
Each (In a Pack of 10)
Unité
General Purpose Surface Mount SOT-23 Dual, Single Open Collector 1 1.3µs 5 3 → 28 V 2.9 x 1.6 x 1.15mm 2.9mm 1.6mm 1.15mm -
N° de stock RS 169-5573
Référence fabricantLM239PWR
0,097 €
Each (On a Reel of 2000)
Unité
Differential Surface Mount TSSOP Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 5 x 4.4 x 1.15mm 5mm 4.4mm 1.15mm -
N° de stock RS 517-2374
Référence fabricantLM2903D
0,344 €
Each (In a Pack of 20)
Unité
Differential Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 → 28 V 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm -
N° de stock RS 121-8671
Référence fabricantLM2903D
0,313 €
Each (In a Tube of 75)
Unité
Differential Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 → 28 V 4.9 x 3.91 x 1.58mm 4.9mm 3.91mm 1.58mm -
N° de stock RS 819-7124
Référence fabricantADCMP354YKSZ-REEL7
0,571 €
Each (In a Pack of 10)
Unité
General Purpose Surface Mount SC-70 Single Open Drain 1 30ns 4 2.25 → 5.5 V 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm -
N° de stock RS 160-4488
Référence fabricantADCMP354YKSZ-REEL7
0,428 €
Each (On a Reel of 3000)
Unité
General Purpose Surface Mount SC-70 Single Open Drain 1 30ns 4 2.25 → 5.5 V 2.2 x 1.35 x 1mm 2.2mm 1.35mm 1mm -
N° de stock RS 533-8237
Référence fabricantLM339N/NOPB
2,33 €
Each
Unité
General Purpose Through Hole MDIP Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 19.05 x 6.35 x 3.3mm 19.05mm 6.35mm 3.3mm -