# Digital Electronics

The development of A/D converters has progressed in a quest to reduce the conversion time. The successive approximation type ADC aims at approximating the analogue signal to be digitized by trying only one bit at a time. Working Process I discussed counter type adc and flash type adc on my early post. But working process of Successive …

## Simultaneous or Flash AD Converter

Now we shall see the simultaneous or flash ad converter. In my earlier post we discuss on how analog to digital converter works? As the name suggest, simultaneous method of A/D conversion is based on using a number of comparators. And it has process of conversion analog to digital, running simultaneously. The number of comparators needed …

## Counter Type A/D Converter

Counter type A/D converter is one of the advance entry label ADC. As we discussed on my early post that working principle of ADC and simultaneous or flash type ADC. Now in this post we look on working principle of counter type A/D converter. Why we use counter type a/d converter? In case of simultaneous …

## 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 …