EZR32HG320 Datasheet, PDF (38/87 Pages) Silicon Laboratories – Consumer electronics

4.11 Analog Digital Converter (ADC)
EZR32HG320 Data Sheet
Electrical Specifications
Table 4.16. ADC
Symbol
Parameter
Condition
V_ADCIN
Input voltage range
Single ended
Differential
V_ADCREFIN
Input range of external
reference voltage, sin-
gle ended and differen-
tial
V_{ADCREFIN_CH7}
Input range of external See V_ADCREFIN
negative reference volt-
age on channel 7
V_{ADCREFIN_CH6}
Input range of external
positive reference volt-
age on channel 6
See V_ADCREFIN
V_ADCCMIN
Common mode input
range
I_ADCIN
CMRR_ADC
Input current
Analog input common
mode rejection ratio
2pF sampling capacitors
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
I_ADC
Average active current
10 kSamples/s 12 bit, internal
1.25 V reference, WARMUP-
MODE in ADCn_CTRL set to
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 consumption of Internal voltage reference
internal voltage refer-
ence
C_ADCIN
R_ADCIN
R_ADCFILT
Input capacitance
Input ON resistance
Input RC filter resist-
ance
C_ADCFILT
Input RC filter/decou-
pling capacitance
Min
Typ
0
-V_REF/2
1.25
0
0.625
0
<100
65
392
67
63
64
244
65
2
1
10
250
Max
V_REF
V_REF/2
V_DD
Unit
V
V
V
V_DD - 1.1
V
V_DD
V
V_DD
V
nA
dB
510
µA
µA
µA
µA
µA
µA
pF
MOhm
kOhm
fF
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