Electrical characteristics
6.3.17
12-bit ADC characteristics
Unless otherwise specified, the parameters given in
Symbol
Parameter
ADC clock
f
ADC
frequency
Symbol
Parameter
V
Power supply
DDA
V
Positive reference voltage
REF+
V
Negative reference voltage
REF-
I
Current on the V
VDDA
(2)
I
Current on the V
VREF
V
Conversion voltage range
AIN
12-bit sampling rate
10-bit sampling rate
f
S
8-bit sampling rate
6-bit sampling rate
102/133
Table 54. ADC clock frequency
Conditions
2.4 V ≤ V
Voltage
range 1 & 2
1.8 V ≤ V
Voltage range 3
Table 55. ADC characteristics
input pin
DDA
input pin
REF
(3)
Multiplexed channels
Multiplexed channels
Multiplexed channels
Multiplexed channels
DocID026119 Rev 5
STM32L151xC/C-A STM32L152xC/C-A
Table 55
V
REF+ =
V
REF+
≤ 3.6 V
V
DDA
REF+
V
REF+
V
REF+
V
REF+ =
≤ 2.4 V
DDA
V
REF+
Conditions
-
-
-
-
Peak
Average
-
Direct channels
Direct channels
Direct channels
Direct channels
are guaranteed by design.
Min
Max
V
DDA
< V
DDA
> 2.4 V
< V
DDA
0.480
≤ 2.4 V
V
DDA
< V
DDA
Min
Typ
Max
1.8
-
(1)
1.8
-
V
-
V
SSA
-
1000
1450
-
700
400
-
450
(4)
0
-
V
-
-
-
-
0.76
-
-
1.07
-
-
-
-
1.23
-
-
0.89
-
-
1.45
-
-
Unit
16
8
4
MHz
8
4
4
Unit
3.6
V
DDA
-
µA
V
REF+
1
Msps
Msps
0.8
Msps
Msps
1
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