EFM32TG225 Datasheet, PDF (26/66 Pages) Silicon Laboratories – Configurable peripheral I/O locations

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3.10 Analog Digital Converter (ADC)
Table 3.14. ADC
Symbol
Parameter
Condition
V_ADCIN
Single ended
Input voltage range
Differential
V_ADCREFIN
Input range of exter-
nal reference volt-
age, single ended
and differential
V_{ADCREFIN_CH7} Input range of ex-
ternal negative ref-
erence voltage on
channel 7
See V_ADCREFIN
V_{ADCREFIN_CH6} Input range of ex-
ternal positive ref-
erence voltage on
channel 6
See V_ADCREFIN
V_ADCCMIN
Common mode in-
put range
I_ADCIN
CMRR_ADC
Input current
2pF sampling capacitors
Analog input com-
mon mode rejection
ratio
1 MSamples/s, 12 bit, external
reference
10 kSamples/s 12 bit, internal
1.25 V reference, WARMUP-
MODE in ADCn_CTRL set to
0b00
10 kSamples/s 12 bit, internal
1.25 V reference, WARMUP-
I_ADC
Average active cur- MODE in ADCn_CTRL set to
rent
0b01
10 kSamples/s 12 bit, internal
1.25 V reference, WARMUP-
MODE in ADCn_CTRL set to
0b10
10 kSamples/s 12 bit, internal
1.25 V reference, WARMUP-
MODE in ADCn_CTRL set to
0b11
I_ADCREF
Current consump-
tion of internal volt-
age reference
Internal voltage reference
C_ADCIN
R_ADCIN
R_ADCFILT
Input capacitance
Input ON resistance
Input RC filter resis-
tance
C_ADCFILT
Input RC filter/de-
coupling capaci-
tance
Min
Typ
0
-V_REF/2
1.25
0
0.625
0
1
Max
Unit
V_REF V
V_REF/2 V
V_DD V
V_DD - 1.1 V
V_DD V
<100
65
377
67
V_DD V
nA
dB
µA
µA
68
µA
71
µA
244
µA
65
µA
2
pF
MOhm
10
kOhm
250
fF
2015-03-06 - EFM32TG225FXX - d0205_Rev1.40
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