Analog to Digital Convertor (ADC)

An Analog-to-Digital-Convertor is a semiconductor device that is used to convert an analog signal into a digital code. The reverse operation is performed by a digital-to-analog converter (DAC). Analog-to-Digital-Convertors are typical found in devices such as Analog Telephone Adaptors that convert analog voice streams to digital packets so that they can be sent via an IP network.

Analog-to-Digital-Convertor Example

Here is an example of what an Analog-to-Digital-Convertor looks like:

Garrett’s Notes on Analog to Digital Convertors

For the average VoIP user, reseller, integrator or service provider there is no reason to concern yourself with ADC’s. Now, if you are designing VoIP products that are doing analog to digital conversion, you will need to more about it. For the rest of us…just move on.