Datasheet

389
8331B–AVR–03/12
Atmel AVR XMEGA AU
Equation 29-3.Gain calibration.
Including calibration in the equation, the DAC output can be expressed by Equation 29-4 on
page 389.
Equation 29-4.DAC output calculation
V
DAC_out
= V
DAC
+ V
OCAL
+ V
GCAL
V
GCAL
V(
DAC
VREF
2
---------------
⎝⎠
⎛⎞
⎠
⎞
– 12.G– CAL 7[]()
GCAL 6[]
16
------------------------
GCAL 5[]
32
------------------------
GCAL 4[]
64
------------------------
GCAL 3[]
128
------------------------
GCAL 2[]
256
------------------------
GCAL 1[]
512
------------------------
GCAL 0[]
1024
------------------------++++++
⎝ ⎠
⎛ ⎞
⋅⋅=