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.

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Beskrivning Pris 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-artikelnummer 919-9364
Tillv. art.nrLT6703HVIS5-3#TRMPBF
VarumärkeAnalog Devices
13,85 kr
Each (On a Reel of 500)
Enheter
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 -
RS-artikelnummer 761-8908
Tillv. art.nrLT6703HVIS5-3#TRMPBF
VarumärkeAnalog Devices
21,09 kr
Each
Enheter
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 -
RS-artikelnummer 165-3326
Tillv. art.nrMCP6541UT-I/LT
VarumärkeMicrochip
2,353 kr
Each (On a Reel of 3000)
Enheter
General Purpose Surface Mount SC-70 Single Push-Pull 1 - 5 1.6 → 5.5 V 2.25 x 1.35 x 1mm 2.25mm 1.35mm 1mm 70dB
RS-artikelnummer 144-5907
Tillv. art.nrMIC841LYMT-T5
VarumärkeMicrochip
3,338 kr
Each (On a Reel of 500)
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Micro Power Comparator Surface Mount TDFN Single Push-Pull 1 - 6 1.5 → 5.5 V 1.6 x 1.6 x 0.5mm 1.6mm 1.6mm 0.5mm -
RS-artikelnummer 162-5392
Tillv. art.nrLMV331IDBVR
VarumärkeTexas Instruments
2,396 kr
Each (On a Reel of 3000)
Enheter
General Purpose Surface Mount SOT-23 Single Open Collector 1 - 5 3 V, 5 V 2.9 x 1.6 x 1.15mm 2.9mm 1.6mm 1.15mm -
RS-artikelnummer 661-2615
Tillv. art.nrLMV331IDBVR
VarumärkeTexas Instruments
4,57 kr
Each (In a Pack of 10)
Enheter
General Purpose Surface Mount SOT-23 Single Open Collector 1 - 5 3 V, 5 V 2.9 x 1.6 x 1.15mm 2.9mm 1.6mm 1.15mm -
RS-artikelnummer 162-6240
Tillv. art.nrLM361M/NOPB
VarumärkeTexas Instruments
20,203 kr
Each (In a Tube of 55)
Enheter
High Speed Surface Mount SOIC Dual TTL 2 0.02µs 14 - 8.738 x 3.988 x 1.499mm 8.74mm 3.99mm 1.5mm -
RS-artikelnummer 761-5864
Tillv. art.nrLM361M/NOPB
VarumärkeTexas Instruments
24,236 kr
Each (In a Pack of 5)
Enheter
High Speed Surface Mount SOIC Dual TTL 2 0.02µs 14 - 8.738 x 3.988 x 1.499mm 8.74mm 3.99mm 1.5mm -
RS-artikelnummer 866-0231
Tillv. art.nrLM393P
VarumärkeTexas Instruments
3,064 kr
Each (In a Tube of 50)
Enheter
General Purpose Through Hole PDIP Dual, Single CMOS, MOS, Open Collector, TTL 2 1.3µs 8 2 → 36 V 10.16 x 6.6 x 4.57mm 10.16mm 6.6mm 4.57mm -
RS-artikelnummer 810-239
Tillv. art.nrLM393P
VarumärkeTexas Instruments
3,93 kr
Each
Enheter
General Purpose Through Hole PDIP Dual, Single Open Collector 2 1.3µs 8 3 → 28 V 9.81 x 6.35 x 4.57mm 9.81mm 6.35mm 4.57mm -
RS-artikelnummer 768-1362
Tillv. art.nrMCP6541UT-I/LT
VarumärkeMicrochip
3,143 kr
Each (In a Pack of 10)
Enheter
General Purpose Surface Mount SC-70 Single Push-Pull 1 - 5 1.6 → 5.5 V 2.25 x 1.35 x 1mm 2.25mm 1.35mm 1mm 70dB
RS-artikelnummer 911-3253
Tillv. art.nrMIC841LYMT-T5
VarumärkeMicrochip
3,432 kr
Each (In a Pack of 10)
Enheter
Micro Power Comparator Surface Mount TDFN Single Push-Pull 1 - 6 1.5 → 5.5 V 1.6 x 1.6 x 0.5mm 1.6mm 1.6mm 0.5mm -
RS-artikelnummer 858-433
Tillv. art.nrLM393D
VarumärkeTexas Instruments
3,72 kr
Each
Enheter
General Purpose 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 -
RS-artikelnummer 900-9879
Tillv. art.nrTLV1701AIDBVT
VarumärkeTexas Instruments
10,588 kr
Each (In a Pack of 5)
Enheter
Low Power Surface Mount SOT-23 Dual, Single Open Collector 1 - 5 2.2 → 36 V 3.05 x 1.75 x 1.3mm 3.05mm 1.75mm 1.3mm -
RS-artikelnummer 121-8421
Tillv. art.nrLM339N
VarumärkeTexas Instruments
3,065 kr
Each (In a Tube of 25)
Enheter
General Purpose Through Hole PDIP Dual, Single Open Collector 4 1.3µs 14 3 → 28 V 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm 4.57mm -
RS-artikelnummer 162-9865
Tillv. art.nrTLV1701AIDBVT
VarumärkeTexas Instruments
6,135 kr
Each (On a Reel of 250)
Enheter
Low Power Surface Mount SOT-23 Dual, Single Open Collector 1 - 5 2.2 → 36 V 3.05 x 1.75 x 1.3mm 3.05mm 1.75mm 1.3mm -
RS-artikelnummer 177-7246
Tillv. art.nrLTC1440CS8#PBF
VarumärkeAnalog Devices
20,73 kr
Each (In a Tube of 100)
Enheter
Low Power Surface Mount SOIC Dual, Single - 1 - 8 3 → 9 V 5 x 3.99 x 1.5mm 5mm 3.99mm 1.5mm 80dB
RS-artikelnummer 145-9606
Tillv. art.nrLM293DT
VarumärkeSTMicroelectronics
0,772 kr
Each (On a Reel of 2500)
Enheter
Low Power Surface Mount SOIC Dual, Single Open Collector 2 1.3µs 8 3 → 28 V 4.9 x 3.9 x 1.25mm 4.9mm 3.9mm 1.25mm -
RS-artikelnummer 768-1369
Tillv. art.nrMCP6541UT-E/OT
VarumärkeMicrochip
3,143 kr
Each (In a Pack of 10)
Enheter
General Purpose Surface Mount SOT-23 Single Push-Pull 1 - 5 1.6 → 5.5 V 3.1 x 1.8 x 1.3mm 3.1mm 1.8mm 1.3mm 70dB
RS-artikelnummer 169-8573
Tillv. art.nrLM319MX
VarumärkeON Semiconductor
1,607 kr
Each (On a Reel of 3000)
Enheter
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 -
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