EFM32WG990 Datasheet, PDF (35/80 Pages) List of Unclassifed Manufacturers – The EFM32 MCUs are the world’s most energy friendly microcontrollers.

Preliminary
...the world's most energy friendly microcontrollers
Symbol
I_ADCREF
C_ADCIN
R_ADCIN
R_ADCFILT
C_ADCFILT
f_ADCCLK
t_ADCCONV
t_ADCACQ
t_ADCACQVDD3
t_ADCSTART
SNR_ADC
Parameter
Condition
Min
MODE in ADCn_CTRL set to
0b00
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
Current consumption of in- Internal voltage reference
ternal voltage reference
Input capacitance
Input ON resistance
Input RC filter resistance
Input RC filter/decoupling
capacitance
ADC Clock Frequency
6 bit
Conversion time
10 bit
12 bit
Acquisition time
Programmable
Required acquisition time
for VDD/3 reference
Startup time of reference
generator and ADC core in
NORMAL mode
Startup time of reference
generator and ADC core in
KEEPADCWARM mode
1 MSamples/s, 12 bit, single
ended, internal 1.25V refer-
ence
Signal to Noise Ratio
(SNR)
1 MSamples/s, 12 bit, single
ended, internal 2.5V refer-
ence
1 MSamples/s, 12 bit, single
ended, V_DD reference
1 MSamples/s, 12 bit, differ-
ential, internal 1.25V refer-
ence
1 MSamples/s, 12 bit, differ-
ential, internal 2.5V reference
Typ
Max
Unit
63
µA
64
µA
65
2
1
10
250
7
11
13
1
2
5
µA
pF
MOhm
kOhm
fF
13 MHz
ADC-
CLK
Cycles
ADC-
CLK
Cycles
ADC-
CLK
Cycles
256 ADC-
CLK
Cycles
µs
µs
1
µs
59
dB
63
dB
65
dB
60
dB
65
dB
2013-05-06 - EFM32WG990FXX - d0203_Rev1.10
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