12-Bit Adc Characteristics - STMicroelectronics STM32L151CB Manual

Electrical characteristics
6.3.16

12-bit ADC characteristics

Unless otherwise specified, the parameters given in
Table 49.
Symbol
f
ADC
Table 50.
Symbol
V
DDA
V
REF+
V
REF-
I
VDDA
(2)
I
VREF
V
AIN
f
S
84/109
ADC clock frequency
Parameter
Voltage
ADC clock
range 1 & 2
frequency
ADC characteristics
Parameter
Power supply
Positive reference voltage
Negative reference voltage
Current on the V input
DDA
pin
Current on the V input
REF
pin
Conversion voltage range
12-bit sampling rate
10-bit sampling rate
8-bit sampling rate
6-bit sampling rate
Doc ID 17659 Rev 6
Table 50
Conditions
V
V
2.4 V ≤ V ≤ 3.6 V
V
DDA
V
V
1.8 V ≤ V ≤ 2.4 V
DDA
V
Voltage range 3
Conditions
2.4 V ≤ V ≤ 3.6 V
DDA
V must be below
REF+
or equal to V
DDA
Peak
Average
(3)
Direct channels
Multiplexed channels
Direct channels
Multiplexed channels
Direct channels
Multiplexed channels
Direct channels
Multiplexed channels
STM32L151xx, STM32L152xx
are guaranteed by design.
Min
V
REF+ = DDA
< V
REF+ DDA
> 2.4 V
REF+
< V
REF+ DDA
0.480
≤ 2.4 V
V
REF+
V
REF+ = DDA
< V
REF+ DDA
Min Typ Max
1.8
(1)
1.8 V
V
SSA
1000 1450
700
400
450
(4)
0 V
0.03
0.03 0.76
0.03 1.07
0.03
0.03 1.23
0.03 0.89
0.03 1.45
0.03
Max Unit
16
8
4
MHz
8
4
4
Unit
3.6
V
DDA
µA
V
REF+
1
Msps
Msps
0.8
Msps
Msps
1