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What is the condition of op-amp to act as comparator?
Then we can see that the op-amp voltage comparator is a device whose output is dependant on the value of the input voltage, VIN with respect to some DC voltage level as the output is HIGH when the voltage on the non-inverting input is greater than the voltage on the inverting input, and LOW when the non-inverting input …
Why could it be beneficial to use a comparator instead of an op-amp in comparator configuration?
Unlike operational amplifiers that usually operate with the input voltages at the same level, comparators typically see large differential voltage swings at their inputs. But some comparators without rail-to-rail inputs are specified to have a limited common mode input voltage range.
What is the principle of comparator?
The general principle of the comparator is to indicate the difference in size between the standard and work being measured by means of some pointer on the scale with sufficient magnification. Initially, the comparator is adjusted to zero on its dial with a standard job in position as shown in Figure(a).
Which type of comparator can be most accurate and sensitive?
Explanation: Eden-Rolt Millionth is a comparator which utilizes both optical and mechanical magnification that means it can utilize advantages of both optical and mechanical comparators hence it is a highly sensitive comparator.
How can op amp be used as a comparator?
Summary A comparator generates an output signal that indicates which of two input signals has the higher voltage. An op-amp can function as a comparator because it combines a differential input stage with very high gain. A voltage-reference IC or a resistive divider can be used to generate a threshold voltage for comparator circuits.
What is the difference between “opamp” and “comparator”?
The basic difference between the comparator and opamp is that the output stage of the comparator is designed in such a way that it operates in the saturation region and for the opamp the output stage is designed such that it operates in the linear region.
What is an ideal opamp?
An ideal op amp is an op amp that has perfect conditions to allow it to function as an op amp with 100% efficiency. An ideal op amp will display the following characeristics, of which are all explained in detail below. Ideal op amps will have infinite voltage gain, infinitely high impedance, zero output impedance,…
What are the advantages of opamp?
Advantages of OP-AMP over conventional Amplifiers: It has smaller size. Its reliability is higher than conventional amplifier Reduced cost as compared to its discrete circuit parts. Less power consumption Easy to replace Same OP-AMP can be used for different applications.