What are comparators in digital electronics?
A digital comparator or magnitude comparator is a hardware electronic device that takes two numbers as input in binary form and determines whether one number is greater than, less than or equal to the other number. Comparators are used in central processing units (CPUs) and microcontrollers (MCUs).
What are the applications of digital comparator?
These are used in control applications in which the binary numbers representing physical variables such as temperature, position, etc. are compared with a reference value. Comparators are also used as process controllers and for Servo motor control. Used in password verification and biometric applications.
How does a comparator work in electronics?
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.
What is an 8 bit comparator?
Introduction. An 8-bit magnitude comparator compares the two 8-bit values and produce a 1-bit flag as result, which indicates that the first value is either greater than or less than or equal to the second value. The block diagram of a comparator is shown in Figure 1.
What is 2 bit comparator?
A comparator used to compare two binary numbers each of two bits is called a 2-bit magnitude comparator. It consists of four inputs and three outputs to generate less than, equal to and greater than between two binary numbers.
What are the advantages of comparator?
Advantages of Electrical Comparator:
- Vibrations are reduced due to least weight of mechanical.
- It consists of less moving parts.
- By AC supply the friction errors are reduced.
- For measuring units the indicating instrument can be held at remote locations.
What is Schmitt trigger its application?
Schmitt trigger devices are typically used in signal conditioning applications to remove noise from signals used in digital circuits, particularly mechanical contact bounce in switches.
What is a comparator tool?
Comparators inspect, measure, and compare the dimensions of manufactured parts. These measurement tools function using the principles of optics by utilizing illumination, lenses, and mirrors to project a magnified silhouette of a part upon a screen.