Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Data Sheet

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SAM4S Series [DATASHEET]

Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14

The ADC is based on a 12-bit Analog-to-Digital Converter (ADC) managed by an ADC Controller. Refer to 

. It also integrates a 16-to-1 analog multiplexer, making possible 

the analog-to-digital conversions of 16 analog lines. The conversions extend from 0V to the voltage carried on pin 

ADVREF. 
Conversion results are reported in a common register for all channels, as well as in a channel-dedicated register.
The last channel is internally connected by a temperature sensor.
Software trigger, external trigger on rising edge of the ADTRG pin or internal triggers from Timer Counter output(s) 

are configurable.
The comparison circuitry allows automatic detection of values below a threshold, higher than a threshold, in a 

given range or outside the range, thresholds and ranges being fully configurable.
The ADC Controller internal fault output is directly connected to PWM Fault input. This input can be asserted by 

means of comparison circuitry in order to immediately put the PWM outputs in a safe state (pure combinational 

path).
The ADC also integrates a Sleep Mode and a conversion sequencer and connects with a PDC channel. These 

features reduce both power consumption and processor intervention.
This ADC has a selectable single-ended or fully differential input and benefits from a 2-bit programmable gain.
A digital error correction circuit based on the multi-bit redundant signed digit (RSD) algorithm is employed in order 

to reduce INL and DNL errors.
Finally, the user can configure ADC timings, such as Startup Time and Tracking Time.