1.1.6 Double Sample Conversions
When enabling a Double Sample Conversion (DSEN = 1
) with no Pre-charge
time (ADPRE = 0
) and no Acquisition time (ADACQ =
0
), the maximum number of cycles of acquisition
time is inserted prior to the second conversion. The first conversion will
be performed as expected with no Pre-charge time and no Acquisition time. It
is only between the first and second conversions where a maximum number of
cycles of Acquisition time is performed unexpectedly.
Work around
Method 1:
Disable Double Sample Conversion (DSEN = 0
) and perform two single
conversions back to back.
Method 2:
If adding acquisition time is acceptable, then select no Precharge time, along with the desired Acquisition time.
Affected Silicon Revisions
A3 | A4 | ||||||
X | X |