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A comparator is an operational amplifier used without a feedback circuit. The output of the comparator will be high when the voltage of the non-inverting input is below the inverting input, and low when the inverting is above the non-inverting input. The output is undefined - i.e. can by anything - when the voltages are equal.

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Q: What does a comparator do in electronics?
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Related questions

How do you spell comparitor?

The correct spelling is "comparator."


What is advantage and disadvantage of optical comparator?

optical comparator advanteges


What is mean by comparatorexplain with diagrame?

com[arator is apricision instrument it is used to compare the actual size of workpeice there r 4 types of comparator 1: mechanical comparator 2:electrical comparator 3:optical comparator 4:penumatic comparator


What is sigma comparator?

it is a mechanical comparator with magnification in range of 300 to 5000


Similarity between opamp and comparator?

A comparator is simply an opamp with a certain configuation of external circuitry ( a few components) that make it function as a comparator.


Design 2-bit comparator using gates?

2 bit comparator = 1bit magnitude comparator +1 bit magnitude comparator if A>B =A(~B)(B bar); if A<B = ~A.B; A==B = AB + (~A)(~B); block of instruction shown above is for 1 bit comparator means if A>B ==true then High bit is set on (A>B) output. if A<B true then high bit is set on (A==B) output, If we cascade two 1 bit comparator then we can design 2-bit comparator...


Difference between a schmitt trigger and an ordinary comparator?

A Schmitt trigger is very similar to a comparator -- both have analog input and send out either a "high" or "low" digital output. A comparator senses the difference between its "+" and "-" inputs. If the "+" input is even a little bit higher than the "-", the comparator sends out a "high". If the "-" input is even a little bit higher than the "+", the comparator sends out a "low". A comparator has only one threshold value. A Schmitt trigger can be built from a comparator and some resistors. Typically the circuit involves positive feedback -- attaching a resistor to feed a small amount of the comparator's output back to the "+" input. A Schmitt trigger has 2 threshold values.


What is a schmitt trigger?

A COMPARATOR CIRCUIT WHICH CONVERTS ANY ARBITRARY SIGNAL(SLOPE!=1) TO SQUARE WAVEFORM IN SHORT A AMPLITUDE COMPARATOR


Why comparator has equals method?

The Java superclass Object says that all Java objects have an equals method. Thus Comparator has an equals method.


What are the application of the comparator?

A comparator is used to compare two things and state whether they are equal, or one is greater than or less than the other.


How does a comparator work?

magnitude comparator is a logic circuit used to compare the two binary numbers in order to determine the relationship between those quantities.


Where can you buy a comparator cheaply?

One can buy a comparator cheaply from both eBay and Amazon online. One can download software for them from sites such as 'ApSIC Localization Solutions.