1.1.2 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 Pre-charge time, along with the desired Acquisition time.
Affected Silicon Revisions
| B0 | B2 | B3 | F1 | G1 |
| X | X | X | X | X |