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.

...
Read more Read less

Filters

Viewing 61 - 80 of 1269 products
Results per page
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. 661-2804
Mfr. Part No.LM311PW
$0.328
Each (In a Pack of 10)
units
General Purpose Surface Mount TSSOP Dual, Single Open Collector/Emitter 1 0.165µs 8 5 → 28 V 3 x 4.4 x 1.15mm 3mm 4.4mm 1.15mm -
RS Stock No. 165-4794
Mfr. Part No.MCP6562-E/SN
BrandMicrochip
$0.815
Each (In a Tube of 100)
units
General Purpose Surface Mount SOIC Single Push-Pull 2 - 8 3 V, 5 V 4.9 x 3.9 x 1.25mm 4.9mm 3.9mm 1.25mm 66dB
RS Stock No. 661-2589
Mfr. Part No.LM2903DGKR
$0.477
Each (In a Pack of 10)
units
Differential Surface Mount MSOP Dual, Single Open Collector 2 1.3µs 8 3 → 28 V 3 x 3 x 0.97mm 3mm 3mm 0.97mm -
RS Stock No. 121-8458
Mfr. Part No.TLC3702CP
$0.787
Each (In a Tube of 50)
units
Low Power Through Hole PDIP Single Push-Pull 2 - 8 5 V 9.81 x 6.35 x 4.57mm 9.81mm 6.35mm 4.57mm 84dB
RS Stock No. 145-5720
Mfr. Part No.TLC3704CN
$1.109
Each (In a Tube of 25)
units
Low Power Through Hole PDIP Single Push-Pull 4 2.7µs 14 5 V 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm 4.57mm 84dB
RS Stock No. 661-2668
Mfr. Part No.TL331IDBVR
$0.662
Each (In a Pack of 10)
units
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 -
RS Stock No. 649-481
Mfr. Part No.TLC3702CP
$1.71
Each
units
Low Power Through Hole PDIP Single Push-Pull 2 - 8 5 V 9.81 x 6.35 x 4.57mm 9.81mm 6.35mm 4.57mm 84dB
RS Stock No. 162-6241
Mfr. Part No.LM361N/NOPB
$3.005
Each (In a Tube of 25)
units
High Speed Through Hole PDIP Dual TTL 2 0.02µs 14 - 19.56 x 6.35 x 3.429mm 19.56mm 6.35mm 3.43mm -
RS Stock No. 759-9374
Mfr. Part No.LM2903N
$0.74
Each (In a Pack of 25)
units
General Purpose Through Hole PDIP Dual, Single Open Collector 2 0.2 μs, 1.4 μs 8 2 → 36 V 9.6 x 6.4 x 3.4mm 9.6mm 6.4mm 3.4mm -
RS Stock No. 168-6422
Mfr. Part No.TS393IDT
$0.398
Each (On a Reel of 2500)
units
Low Power Surface Mount SOIC Dual, Single Open Drain 2 2.5µs 8 3 → 15 V 4.9 x 3.9 x 1.25mm 4.9mm 3.9mm 1.25mm 71dB
RS Stock No. 528-347
Mfr. Part No.TL331IDBVT
$0.76
Each (In a Pack of 25)
units
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 -
RS Stock No. 823-4478
Mfr. Part No.MCP6541RT-I/OT
BrandMicrochip
$0.547
Each (In a Pack of 20)
units
Low Power Surface Mount SOT-23 Single Push-Pull 1 0.85µs 5 1.6 → 5.5 V 3.1 x 1.8 x 1.3mm 3.1mm 1.8mm 1.3mm 70dB
RS Stock No. 168-4868
Mfr. Part No.TL331IDBVT
$0.489
Each (On a Reel of 250)
units
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 -
RS Stock No. 165-1899
Mfr. Part No.MCP6541RT-I/OT
BrandMicrochip
$0.416
Each (On a Reel of 3000)
units
Low Power Surface Mount SOT-23 Single Push-Pull 1 0.85µs 5 1.6 → 5.5 V 3.1 x 1.8 x 1.3mm 3.1mm 1.8mm 1.3mm 70dB
RS Stock No. 640-7902
Mfr. Part No.LM361N
$3.64
Each
units
General Purpose Through Hole MDIP Dual, Single Differential 2 - 14 5 V 19.05 x 6.35 x 3.3mm 19.05mm 6.35mm 3.3mm -
RS Stock No. 162-6754
Mfr. Part No.TLV7211AIDBVR
$0.784
Each (On a Reel of 3000)
units
- Surface Mount SOT-23 - Push-Pull - - 5 - 3.05 x 1.75 x 1.3mm 3.05mm 1.75mm 1.3mm -
RS Stock No. 761-8908
Mfr. Part No.LT6703HVIS5-3#TRMPBF
$2.72
Each
units
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 Stock No. 660-4475
Mfr. Part No.TLV3501AIDBVT
$3.90
Each
units
General Purpose Surface Mount SOT-23 Single Push-Pull 1 - 6 3 V, 5 V 2.9 x 1.6 x 1.15mm 2.9mm 1.6mm 1.15mm 70dB
RS Stock No. 686-7515
Mfr. Part No.TS393IDT
$0.693
Each (In a Pack of 10)
units
Low Power Surface Mount SOIC Dual, Single Open Drain 2 2.5µs 8 3 → 15 V 4.9 x 3.9 x 1.25mm 4.9mm 3.9mm 1.25mm 71dB
RS Stock No. 649-497
Mfr. Part No.TLC3704CN
$2.18
Each
units
Low Power Through Hole PDIP Single Push-Pull 4 2.7µs 14 5 V 19.3 x 6.35 x 4.57mm 19.3mm 6.35mm 4.57mm 84dB
Related Products
The Texas Instruments LM193, LM293, LM393 and LM2903 ...
Description:
The Texas Instruments LM193, LM293, LM393 and LM2903 are dual differential input voltage comparators designed to operate from a single power supply over a wide range of voltages. The common mode input voltage range includes ground and the devices have ...
Discontinued Comparators from National Semiconductor and Texas Instruments. ...
Description:
Discontinued Comparators from National Semiconductor and Texas Instruments.
A range of high speed voltage comparators from ...
Description:
A range of high speed voltage comparators from Texas Instruments featuring response times of less than 200 ns. The range includes ultra-fast devices such as the TL3016 and TL3116 which have complementary (differential) outputs and typical switching times of 10 ...
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.