Introduction

Authors: Rupali Honrao, Amund Aune, and Egil Rotevatn, Microchip Technology Inc.

This technical brief explains how to use the Single mode with the 12-bit Analog-to-Digital Converter (ADC) featured in the tinyAVR^® 2 family.

The code examples below are given using the Single mode:

Interrupt using Window Comparator
Event-triggered conversion
Measuring V_DD
Measuring Internal Temperature sensor

In Single mode, when the ADC conversion is triggered, the ADC result is available for a single sample. In this mode, ADC resolution can be selected to be 8-bit or 12-bit.

The ADC operation modes can be split into three groups:

Single mode – Single conversion per trigger, with 8- or 12-bit conversion output
Series Accumulation mode – One conversion per trigger, with accumulation of n samples
Burst Accumulation mode – A burst with n samples accumulated as fast as possible after a single trigger

Refer to Section Relevant Documents for details on the other ADC modes.