Electrical characteristics
STM32L151x6/8/B, STM32L152x6/8/B
98/129
DocID17659 Rev 10
6.3.18 DAC
electrical specifications
Data guaranteed by design, not tested in production, unless otherwise specified.
Table 57. DAC characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
V
DDA
Analog supply voltage
-
1.8
-
3.6
V
V
REF+
Reference supply voltage
V
REF+
must always be below
V
DDA
1.8
-
3.6
V
V
REF-
Lower reference voltage
-
V
SSA
V
I
Current consumption on
V
REF+
supply
V
REF+
= 3.3 V
No load, middle code (0x800)
-
130
220
µA
No load, worst code (0x000)
-
220
350
µA
I
DDA
(1)
Current consumption on
V
DDA
supply
V
DDA
= 3.3 V
No load, middle code (0x800)
-
210
320
µA
No load, worst code (0xF1C)
-
320
520
µA
R
L
(2)
Resistive load
DAC output buffer ON
5
-
-
k
Ω
C
Capacitive load
-
-
50
pF
R
O
Output impedance
DAC output buffer OFF
12
16
20
k
Ω
V
DAC_OUT
Voltage on DAC_OUT
output
DAC output buffer ON
0.2
-
V
DDA
– 0.2
V
DAC output buffer OFF
0.5
-
V
REF+
–
1LSB
mV
Differential non
linearity
(3)
C
L
≤
50 pF, R
L
≥
5 k
Ω
DAC output buffer ON
-
1.5
3
LSB
No R
LOAD
, C
L
≤
50 pF
DAC output buffer OFF
-
1.5
3
INL
Integral non linearity
(4)
C
L
≤
50 pF, R
L
≥
5 k
Ω
DAC output buffer ON
-
2
4
No R
LOAD
, C
L
≤
50 pF
DAC output buffer OFF
-
2
4
Offset
Offset error at code
0x800
(5)
C
L
≤
50 pF, R
L
≥
5 k
Ω
DAC output buffer ON
-
±10
±25
No R
LOAD
, C
L
≤
50 pF
DAC output buffer OFF
-
±5
±8
Offset1
Offset error at code
0x001
(6)
No R
LOAD
, C
L
≤
50 pF
DAC output buffer OFF
-
±1.5
±5