## ANALOG TO DIGITAL CONVERTERS

An analog to digital converters, or A/D converter, is the reverse system of a D/A converter. It converts an analog signal to its digital form. In my early post we discussed on how a digital to analog converters works? Now in this post we will see how an analog to digital converters works? How an analog …

To overcome huge range of resistor used in weighted resistor D/A converter, R-2R ladder D/A converter is introduced. In my previous post I discussed about weighted resistor D/A converter. Now question is why we use R-2R ladder D/A converter? Why we use R-2R ladder D/A converter? As we know the vital problem in weighted register …

## Weighted resistor digital to analog Converter

Weighted resistor digital to analog Converter is a very basic D/A converter. By using simple resistor network we can easily build that. As we discuss earlier about how digital to analog converters works you may refer that first. Let us consider a N-bit straight binary resistor network, which produces a current I corresponding to logic …

## How Digital to Analogue Converters (DAC) works?

It is very important question in digital electronics that How Digital to Analogue Converters (DAC) works? In our real world most of signals are analogue continues in nature. But if we want to process it further, we need to convert these analogue signals in digital signals. Finally after processing again we have to convert it in analogue form using Digital to Analogue Converters. Because …

## Quine McCluskey tabulation method

The Quine McCluskey tabulation method is a very useful and convenient tool for simplification of Boolean functions for large numbers of variables. As we know that the Karnaugh map method is a very useful and convenient tool for simplification of Boolean functions as long as the number of variables does not exceed four. But for …

## What are hazards in digital circuit ?

It is very important topic that what are hazards in digital circuit ? When you design any digital circuit you have to consider the hazards in digital circuit. If we want to find the answer of question that what are hazards in digital circuit? Then the basic thing we should give attention that for asynchronous sequential …

## Frequency Counter

As name suggest a frequency counter is a special kind of digital circuit that can measure and display the frequency of a signal. In my previous post I discussed on 1) What is a counter? 2) Ripple counter 3) Asynchronous 3-bit Up Down counter 4) What is a synchronous counter? You may refer all those to clear …

## What is a synchronous counter?

Here we come with a new post on synchronous counter. In my previous post I discussed on asynchronous counter. Now through this post we try to learn some very important topic which create lots of confusion.   Asynchronous and synchronous counter. Single and multimode counters. Modulus counters. Why we use synchronous counter instead of asynchronous counter? …

## Asynchronous 3-bit up down counter

Here we come with asynchronous 3-bit up down counter. Some questions we have to clear during the post. What is up counter? What is down counter? How can we combined both? How Asynchronous 3-bit up down counter construct? Working Principal What is up counter? Lets start with UP-Counter. As name suggest it start counting from 0,1,2,3,4,5,6,7,8,9. …

## Ripple counter

Now in this post we can discuss on ripple counter. As we know from my previous post regarding what is a counter? Now we start with simplest ripple counter circuit which can be built using T flip flops because as we know T flip flop is operate only toggle mode of JK Flip flop. So …