Datasheet

DocID027096 Rev 2 103/137
STM32L073xx Electrical characteristics
117
6.3.16 DAC electrical specifications
Data guaranteed by design, not tested in production, unless otherwise specified.
Table 67. 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
DDVREF+
(1)
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
I
DDA
(2)
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
R
L
(2)
Resistive load
DAC output buffer on
5- -kΩ
C
L
(2)
Capacitive load - - 50 pF
R
O
Output impedance DAC output buffer off 6 8 10 kΩ
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
DNL
(2)
Differential non
linearity
(3)
C
L
≤ 50 pF, R
L
≥ 5 kΩ
DAC output buffer on
-1.5 3
LSB
No R
LOAD
, C
L
≤ 50 pF
DAC output buffer off
-1.5 3
INL
(2)
Integral non linearity
(4)
C
L
≤ 50 pF, R
L
≥ 5 kΩ
DAC output buffer on
-2 4
No R
LOAD
, C
L
≤ 50 pF
DAC output buffer off
-2 4
Offset
(2)
Offset error at code
0x800
(5)
C
L
≤ 50 pF, R
L
≥ 5 kΩ
DAC output buffer on
-±10 ±25
No R
LOAD
, C
L
≤ 50 pF
DAC output buffer off
-±5 ±8
Offset1
(2)
Offset error at code
0x001
(6)
No R
LOAD
, C
L
≤ 50 pF
DAC output buffer off
-±1.5 ±5
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