![microphone analog to digital converter microphone analog to digital converter](https://www.bhphotovideo.com/images/images500x500/SM_Pro_Audio_ADDA_192_S_ADDA_192_S_Digital_480178.jpg)
Now we can see that the RED line represents the original signal “better” than the previous RED line. You can see the eight levels in the following illustration: That is, we can show the changes from 0 to 5 volt with 8 numbers, or more precisely 8 levels.
![microphone analog to digital converter microphone analog to digital converter](https://mynewmicrophone.com/wp-content/uploads/2019/05/mnm_SiSonic_MEMS_Microphone.jpg)
With three bits we can get 8 different options: 000 Now, suppose that the voltage that supplied to the A/D converter is still varies from 0 to 5 volt, however, the A/D converter converts the input voltage to a binary number of three-bits. Thus, we can say that A/D with the binary number of two-bits has a low resolution and there is a large gap between the real value of the analog input voltage and the values represented by the A/D. not close enough to the original analog input voltage values. We can see that the red signal far from being ideal, i.e. RED line represents the digital levels at the output of the ANALOG-TO-DIGITAL CONVERTER (A/D) of the microcontroller. You can see the 4 levels in the following illustration:īLUE line describes the changes in the input voltage of the ANALOG-TO-DIGITAL CONVERTER (A/D) of the microcontroller. That is, we can show the changes from 0 to 5 volt with 4 numbers, or more precisely four levels. With two bits, we can ONLY display 4 different options: 00 Suppose that the voltage that supplied to the A/D converter varies from 0 to 5 volt, and the A/D converter converts the input voltage to a binary number of two-bits. The more bits the binary number has, the higher the resolution of the - A/D. These binary numbers can be in different length - 2, 4, 8, 10-bit. The ATD CONVERTER converts analog voltage to binary numbers. Let’s explore the principle of operation of the A/D converter:
![microphone analog to digital converter microphone analog to digital converter](https://au.mouser.com/images/marketingid/2020/img/128319371.png)
The role of the ANALOG-TO-DIGITAL CONVERTER (A/D) is to convert analog voltage values to digital values. PIC Analog to Digital Converter tutorial A/D Theoretical background