AVR1300 Datasheet, PDF (1/26 Pages) ATMEL Corporation – Up to 12 bit resolution Signed and unsigned mode Result comparator

AVR1300: Using the Atmel AVR XMEGA ADC
Features
• Up to 12 bit resolution
• Up to 2M samples per second
• Signed and unsigned mode
• Selectable gain
• Pipelined architecture
• Up to 4 virtual channels
• Result comparator
• Automatic calibration
• Internal connection to DAC output
• Driver source code included
8-bit
Microcontrollers
Application Note
1 Introduction
The Atmel^® AVR^® XMEGA^® ADC module is a high-performance Analog-to-Digital
converter capable of conversion rates up to 2 million samples per second (Msps)
with a resolution of 12 bits. A wide range of multiplexer (MUX) settings, integrated
gain stage and four virtual input channels make this a flexible module suitable for a
wide range of applications, such as data acquisition, embedded control and
general signal processing.
This application note describes the basic functionality of the XMEGA ADC with
code examples to get up and running quickly. The examples are implemented in
software framework (ASF 2.0), which are available for the Atmel AVR XMEGA and
Atmel^® AVR^® UC3^TM microcontroller series.
Advanced usage, such as Direct Memory Access (DMA) and the XMEGA Event
System, is outside the scope of this application note. Please refer to the device
datasheets and other relevant application notes such as AVR1304: Using the
XMEGA DMA Controller, and AVR1001: Getting Started with the XMEGA Event
System.
Figure 1-1. ADC Overview
Preliminary
Rev. 8032H-AVR-12/10