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Figure 47-2. Single DAC Conversion
GCLK_DAC
DATAx
0x3FF
0xFFF
STATUS.EOCx
0xFFF VREF
0x7FF VREF/2
0x000 0
T CONV
t0 t12 t24
VOUTx
Start of
Conversion
Since the DAC conversion is implemented as pipelined procedure, a new conversion can be started after
only 12 GCLK_DAC periods. Therefore if DATAx is written while a conversion is ongoing, start of
conversion is postponed until DACx is ready to start next conversion.
The maximum conversion rate (samples per second) is therefore:
CR
max
=
2
conv
Figure 47-3. Multiple DAC Conversions
GCLK_DAC
DATAx
0x000
0x3FF
STATUS.EOCx
0xFFF VREF
0x7FF VREF/2
0x000 0
T CONV0
t0 t12 t24
0x7FF 0xFFF
... ...
T CONV1
t36
...
T CONV2
t48
... ...
VOUTx
Start of
Conversion
Related Links
19. SUPC – Supply Controller
47.6.3 Operating Conditions
The DAC voltage reference must be below VDDANA.
The maximum conversion rate of 1MSPS can be achieved only if VDDANA is above 2.4V.
SAM D5x/E5x Family Data Sheet
DAC – Digital-to-Analog Converter
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 1676