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2013-06-28 - EFM32G230FXX - d0005_Rev1.60
41
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Figure 3.30. ADC Absolute Offset, Common Mode = Vdd /2
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.4
3.6
3.8
Vdd (V)
–4
–3
–2
–1
0
1
2
3
4
5
A
c
tu
a
l
O
ff
s
e
t
[L
S
B
]
Vref= 1V25
Vref= 2V5
Vref= 2XVDDVSS
Vref= 5VDIFF
Vref= VDD
Offset vs Supply Voltage, Temp = 25°
–40
–15
5
25
45
65
85
Tem p (C)
–1.0
–0.5
0.0
0.5
1.0
1.5
2.0
A
c
tu
a
l
O
ff
s
e
t
[L
S
B
]
VRef= 1V25
VRef= 2V5
VRef= 2XVDDVSS
VRef= 5VDIFF
VRef= VDD
Offset vs Temperature, Vdd = 3V
Figure 3.31. ADC Dynamic Performance vs Temperature for all ADC References, Vdd = 3V
–40
–15
5
25
45
65
85
Tem perat ure [ ° C]
63
64
65
66
67
68
69
70
71
S
N
R
[d
B
]
1V25
2V5
Vdd
5VDIFF
2XVDDVSS
Signal to Noise Ratio (SNR)
–40
–15
5
25
45
65
85
Tem perat ure [ ° C]
78.0
78.2
78.4
78.6
78.8
79.0
79.2
79.4
S
F
D
R
[d
B
]
1V25
2V5
Vdd
5VDIFF
2XVDDVSS
Spurious-Free Dynamic Range (SFDR)
3.11 Digital Analog Converter (DAC)
Table 3.15. DAC
Symbol
Parameter
Condition
Min
Typ
Max
Unit
VDD voltage reference, single
ended
0
VDD V
VDACOUT
Output voltage range
VDD voltage reference, differ-
ential
-VDD
VDD V
VDACCM
Output common mode volt-
age range
0
VDD V
500 kSamples/s, 12bit
400
A
100 kSamples/s, 12 bit
200
A
IDAC
Active current including ref-
erences for 2 channels
1 kSamples/s 12 bit
38
A