What is a 1 bit comparator?
1-Bit Magnitude Comparator – A comparator used to compare two bits is called a single bit comparator. It consists of two inputs each for two single bit numbers and three outputs to generate less than, equal to and greater than between two binary numbers.
What are the applications of 1 bit 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.
Which logic is used in single bit digital comparator?
Exclusive-NOR gates
Digital comparators actually use Exclusive-NOR gates within their design for comparing their respective pairs of bits.
What is the relationship between L e and g in 1 bit comparator?
So, the comparator produces three outputs as L, E and G corresponds to less than, equal and greater than comparisons. Comparators that have only one output terminal and produces the output either low or high are identity comparators.
How many types of digital comparators are *?
There are two main types of digital comparators available: Identity comparator and Magnitude comparator.
What is comparator DSD?
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. …
What is 2 bit digital comparator?
A 2-bit comparator compares two binary numbers, each of two bits and produces their relation such as one number is equal or greater than or less than the other. The figure below shows the block diagram of a two-bit comparator which has four inputs and three outputs.
What is 8bit comparator?
8-bit magnitude comparator. The 74HC688 is an 8-bit magnitude comparator. It performs comparisons of two 8-bit binary or BCD words. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of V CC.
What is the purpose of a 1 bit comparator?
Comparator – Designing 1-bit, 2-bit and 4-bit comparators using logic gates A Comparator is a combinational circuit that gives output in terms of A>B, A
What is the truth table for a 1 bit comparator?
The truth table for a 1-bit comparator is given below : 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. 1.
How are binary and standard comparators made up?
Digital or Binary Comparators are made up from standard AND, NORand NOT gates that compare the digital signals present at their input terminals and produce an output depending upon the condition of those inputs.
When to use a digital comparator in combinational system?
This comparison determines whether one number is greater than, equal, or less than the other number. A digital comparator is widely used in combinational system and is specially designed to compare the relative magnitudes of binary numbers. These are also available in IC form with different bit comparing configurations such as 4-bit, 8-bit, etc.