Datasheet

SAM3X / SAM3A [DATASHEET]
Atmel-11057C-ATARM-SAM3X-SAM3A-Datasheet_23-Mar-15
1318
43.2 Embedded Characteristics
 12-bit Resolution
 1 MHz Conversion Rate
 Wide Range Power Supply Operation
 Selectable Single Ended or Differential Input Voltage
 Programmable Gain For Maximum Full Scale Input Range 0 - VDD
 Integrated Multiplexer Offering Up to 16 Independent Analog Inputs
 Individual Enable and Disable of Each Channel
 Hardware or Software Trigger
 External Trigger Pin
 Timer Counter Outputs (Corresponding TIOA Trigger)
 PWM Event Line
 Drive of PWM Fault Input
 PDC Support
 Possibility of ADC Timings Configuration
 Two Sleep Modes and Conversion Sequencer
 Automatic Wakeup on Trigger and Back to Sleep Mode after Conversions of all Enabled Channels
 Possibility of Customized Channel Sequence
 Standby Mode for Fast Wakeup Time Response
 Power Down Capability
 Automatic Window Comparison of Converted Values
 Write Protect Registers
43.3 Block Diagram
Figure 43-1. Analog-to-Digital Converter Block Diagram
ADTRG
ADVREF
GND
VDDANA
Trigger
Selection
Timer
Counter
Channels
AD0
AD1
ADn
Analog
Inputs
ADC Interrupt
ADC 12-Bit Controller
ADC cell
Control
Logic
User
Interface
Interrupt
Controller
Peripheral Bridge
APB
PDC
AHB
IN+
IN-
S/H
OFFSET
PGA
PIO
Cyclic Pipeline
12-bit Analog-to-Digital
Converter
CHx