Digital Electronics and Gates(And gate, OR gate, Not gate)

Digital Electronics

Introduction: When we listen the term digital logic the first thing which comes in our mind is digital values i.e 0 and 1. In digital electronics generation of zero volt input is almost impossible to achieve hence we think values of  ~ 0.5, 0.6, 0.7 V~ as 0V input and  ~ 4.5, 4.6, 4.7V ~ as 5V.

So here question is that why we use digital signal if they are actually not discrete, ( as we know we take ~ 0.5, 0.6, 0.7 V~ as 0V input and  ~ 4.5, 4.6, 4.7V ~ as 5V. etc...)

So lets starts with some different concepts.

Let us take an analog signal

Analog to Digital

we will quantize this signal using some discrete quantum values, and the portion which comes in between two quantum is known as quantization error. So if we take small quantum then this error will be less.
And after getting this discrete values we use comparator to give them a some level for a particular range, and when we get a discrete value we use it with logic gates.

Posted in: Digital Electronics