Electrical characteristics
STM32L151xC STM32L152xC
6.3.17
12-bit ADC characteristics
Unless otherwise specified, the parameters given in Table 56 are guaranteed by design.
Symbol Parameter
fADC
ADC clock
frequency
Table 55. ADC clock frequency
Conditions
Voltage
range 1 & 2
2.4 V ≤VDDA ≤3.6 V
1.8 V ≤VDDA ≤2.4 V
Voltage range 3
VREF+ = VDDA
VREF+ < VDDA
VREF+ > 2.4 V
VREF+ < VDDA
VREF+ ≤2.4 V
VREF+ = VDDA
VREF+ < VDDA
Min
0.480
Max Unit
16
8
4
MHz
8
4
4
Table 56. ADC characteristics
Symbol
Parameter
Conditions
Min
VDDA
VREF+
VREF-
IVDDA
Power supply
Positive reference voltage
Negative reference voltage
Current on the VDDA input pin
IVREF(2) Current on the VREF input pin
VAIN Conversion voltage range(3)
12-bit sampling rate
10-bit sampling rate
fS
8-bit sampling rate
6-bit sampling rate
-
-
-
-
Peak
Average
-
Direct channels
Multiplexed channels
Direct channels
Multiplexed channels
Direct channels
Multiplexed channels
Direct channels
Multiplexed channels
1.8
1.8(1)
-
-
-
-
0(4)
-
-
-
-
-
-
-
-
Typ
-
-
VSSA
1000
400
-
-
-
-
-
-
-
-
-
Max
3.6
VDDA
-
1450
700
450
VREF+
1
0.76
1.07
0.8
1.23
0.89
1.45
1
Unit
V
µA
V
Msps
Msps
Msps
Msps
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