Datasheet

DocID023353 Rev 7 105/133
STM32F303xB STM32F303xC Electrical characteristics
118
t
CONV
(1)
Total conversion time
(including sampling time)
f
ADC
= 72 MHz
Resolution = 12 bits
0.19 - 8.52 µs
Resolution = 12 bits
14 to 614 (t
S
for sampling + 12.5 for
successive approximation)
1/f
ADC
1. Data guaranteed by design.
2. V
REF+
can be internally connected to V
DDA
and V
REF-
can be internally connected to V
SSA
, depending on the package.
Refer to Section 4: Pinouts and pin description for further details.
Table 66. ADC characteristics (continued)
Symbol Parameter Conditions Min Typ Max Unit
Table 67. Maximum ADC R
AIN
(1)
Resolution
Sampling
cycle @
72 MHz
Sampling
time [ns] @
72 MHz
R
AIN
max (k)
Fast channels
(2)
Slow
channels
Other
channels
(3)
12 bits
1.5 20.83 0.018 NA NA
2.5 34.72 0.150 NA 0.022
4.5 62.50 0.470 0.220 0.180
7.5 104.17 0.820 0.560 0.470
19.5 270.83 2.70 1.80 1.50
61.5 854.17 8.20 6.80 4.70
181.5 2520.83 22.0 18.0 15.0
601.5 8354.17 82.0 68.0 47.0
10 bits
1.5 20.83 0.082 NA NA
2.5 34.72 0.270 0.082 0.100
4.5 62.50 0.560 0.390 0.330
7.5 104.17 1.20 0.82 0.68
19.5 270.83 3.30 2.70 2.20
61.5 854.17 10.0 8.2 6.8
181.5 2520.83 33.0 27.0 22.0
601.5 8354.17 100.0 82.0 68.0
8 bits
1.5 20.83 0.150 NA 0.039
2.5 34.72 0.390 0.180 0.180
4.5 62.50 0.820 0.560 0.470
7.5 104.17 1.50 1.20 1.00
19.5 270.83 3.90 3.30 2.70
61.5 854.17 12.00 12.00 8.20
181.5 2520.83 39.00 33.00 27.00
601.5 8354.17 100.00 100.00 82.00