EFM32G Data Sheet
Electrical Characteristics
4.10 Analog Digital Converter (ADC)
Table 4.14. ADC
Parameter
Symbol
Test Condition
Single-ended
Differential
Min
0
Typ
—
Max
VREF
VREF/2
VDD
Unit
V
VADCIN
Input voltage range
-VREF/2
1.25
—
V
Input range of external refer-
ence voltage, single-ended and
differential
VADCREFIN
—
V
Input range of external negative VADCREFIN_CH7
reference voltage on channel 7
See VADCREFIN
0
—
—
VDD - 1.1
V
V
Input range of external positive VADCREFIN_CH6
reference voltage on channel 6
See VADCREFIN
0.625
VDD
Common mode input range
Input current
VADCCMIN
IADCIN
0
—
<100
65
VDD
—
V
2 pF sampling capacitors
—
—
nA
dB
Analog input common mode re- CMRRADC
jection ratio
—
7351
7601
3461
3541
521
1 Msamples/s, 12 bit, external
reference, ADC_CLK = 13 MHz,
BIASPROG = 0xF4B
—
—
—
—
—
—
—
—
—
—
µA
µA
µA
µA
µA
1 Msamples/s, 12 bit, internal
1.25V reference, ADC_CLK =
13 MHz, BIASPROG = 0xF4B
500 Ksamples/s, 12 bit, external
reference, ADC_CLK = 7 MHz,
BIASPROG = 0x747
500 Ksamples/s, 12 bit, internal
1.25V reference, ADC_CLK = 7
MHz, BIASPROG = 0x747
IADC
Average active current
10 kSamples/s, 12 bit, internal
1.25 V reference, WARMUP =
00b, ADC_CLK = 7 MHz, BIA-
SPROG = 0x747
501
541
10 kSamples/s, 12 bit, internal
1.25 V reference, WARMUP =
01b, ADC_CLK = 7 MHz, BIA-
SPROG = 0x747
—
—
—
—
µA
µA
10 kSamples/s, 12 bit, internal
1.25 V reference, WARMUP =
10b, ADC_CLK = 7 MHz, BIA-
SPROG = 0x747
Input capacitance
CADCIN
—
1
2
—
—
—
—
—
pF
MΩ
kΩ
fF
Input ON resistance
Input RC filter resistance
RADCIN
RADCFILT
CADCFILT
—
—
10
250
Input RC filter/decoupling ca-
pacitance
Input bias current
IADCBIASIN
VSS < VIN < VDD
-40
—
40
nA
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