Encoder in Digital Electronics
An encoder is a digital circuit that performs the inverse operation of a decoder. An encoder has 2n (or less) input lines and n output lines. The output lines generate the binary code corresponding to the input value. An example of an encoder is the octal-to-binary encoder, whose truth table is given in the below table.
![Encoder in Digital Electronics](https://webeduclick.com/wp-content/uploads/2022/03/Encoder-in-Digital-Electronics.png)
It has eight inputs, one for each of the octal digits, and three outputs that generate the corresponding binary number. It is assumed that only one input has a value of 1 at any given time; otherwise, the circuit has no meaning.