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Electrical characteristics
111
6.3.18 DAC 
electrical specifications
Data guaranteed by design, not tested in production, unless otherwise specified.
          
Table 59. 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
REF-
Lower reference voltage
V
SSA
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
Current consumption on 
V
DDA
 supply
V
DDA
 = 3.3 V
No load, middle code (0x800)
-
210
320
No load, worst code (0xF1C)
-
320
520
R
L
(2)
Resistive load
DAC output buffer ON
5
-
-
k
C
L
Capacitive load
-
-
50
pF
R
O
Output impedance
DAC output buffer OFF
6
8
10
k
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
Differential non 
linearity
(3)
C
L
 
  50 pF, R
L
 
 5 k
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
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
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