What is a comparator and what its function?
What is a comparator and what its function?
Definition. According the Merriam-Webster dictionary, a comparator is any device that’s primary function is to compare an object against the standard measurement. This is an essential function for manufacturers who must regularly meet product specifications during development.
Why is a circuit called a comparator?
As the name comparator implies these electronic components and circuits are used to compare two voltages. When one is higher than the other the comparator circuit output is in one state, and when the input conditions are reversed, then the comparator output switches to the other state.
What is mean by comparator in electronics?
In electronics, a comparator is a device that compares two voltages or currents and outputs a digital signal indicating which is larger. It has two analog input terminals and and one binary digital output .
How does a comparator circuit work?
The comparator circuit work by simply taking two analog input signals, comparing them and then produce the logical output high “1” or low “0“. When the analog input on non-inverting is less than the analog input on inverting input, then the comparator output will swing to the logical low.
Why is comparator needed?
Comparators are used to find-out deviation of dimensions between a given component being checked and a known datum. The indicated difference in the dimensions is usually small and hence suitable magnification device should be employed to obtain the desired accuracy of measurements.
How does a comparator work?
Generally, in electronics, the comparator is used to compare two voltages or currents which are given at the two inputs of the comparator. That means it takes two input voltages, then compares them and gives a differential output voltage either high or low-level signal. The comparator is used to sense when an arbitrary varying input signal reaches the reference level or a defined threshold level.
What are the applications of op amp?
Op amps are used in a wide variety of applications in electronics. Some of the more common applications are: as a voltage follower, selective inversion circuit, a current-to-voltage converter, active rectifier, integrator, a whole wide variety of filters, and a voltage comparator.
What are the different types of op amps?
Top 10 Fundamental Op Amp Circuits Voltage Follower. The most basic circuit is the voltage buffer, as it does not require any external components. Inverting Op Amp. In this configuration, the output is fed back to the negative or inverting input through a resistor (R2). Non-inverting Op Amp. Non-inverting Summing Amplifier. Inverting Summing Amplifier. Differential Amplifier. Integrator.
What is an operational amplifier circuit?
An operational amplifier or op-amp is simply a linear Integrated Circuit (IC) having multiple-terminals. The op-amp can be considered to be a voltage amplifying device that is designed to be used with external feedback components such as resistors and capacitors between its output and input terminals.
