Which of the following logic gate can be used as a comparator?

Which of the following logic gate can be used as a comparator?

Equality Comparators 1 is the simplest multi-bit logic comparator, and can be used for such circuits as electronic locks and security devices where a binary password consisting of multiple bits is input to the comparator to be compared with another preset word.

How EX OR gate can be used as magnitude comparator?

Single Bit Magnitude Comparator This comparator compares the two bits and produces one of the 3 outputs as L (AB). AND gates are used to find whether a binary digit is less than greater than another bit whereas Ex-NOR gate is used to find whether two binary numbers are equal or not.

What is a comparator in logic gates?

Logic comparators are the workhorse components of modern digital electronics and logic design. A logic comparator is made by two AND gates, Two inverter/NOT gates, and one NOR gate to be. It takes two inputs and compare the two inputs and produce an output, based on the condition or values of the two inputs.

How does a 4 bit comparator work?

A comparator used to compare two binary numbers each of four bits is called a 4-bit magnitude comparator. It consists of eight inputs each for two four bit numbers and three outputs to generate less than, equal to and greater than between two binary numbers.

Which gate is basic comparator?

XNOR gate
Note: An XNOR gate is a basic comparator, because its output is “1” only if its two input bits are equal. The analog equivalent of digital comparator is the voltage comparator.

Which gate is best used as comparator?

Comparators are used in central processing units (CPUs) and microcontrollers (MCUs). Examples of digital comparator include the CMOS 4063 and 4585 and the TTL 7485 and 74682. Note: An XNOR gate is a basic comparator, because its output is “1” only if its two input bits are equal.

How are comparators used in logic AND gate?

When you’ve got some comparators either already in your circuit or built into your MCU, there are some handy tricks you can use. The following will show you how you can use a comparator to make a Logic AND Gate. Resistors 3 and 4 are used to bias the non inverting input while resistors 1 and 2 are used to average the two inputs.

Which is the magnitude comparator for Gate 1?

A simple 1-bit magnitude comparator is shown in Fig 4.3.2. Gate 1 produces the function A>B and gate 3 gives A

What is the output of a magnitude comparator?

Gate 1 produces the function A>B and gate 3 gives A

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