Power Supply - Silicon Laboratories EFR32xG14 Wireless Gecko Reference Manual

ADC
WARMUPMODE
set
Power
a)
Power
b)
5 µs 5 µs
Power
c)
5 µs
Figure 26.4. ADC Analog Power Consumption With Different WARMUPMODE Settings
Note:
When using any warm-up mode other than NORMAL, always switch back to the NORMAL mode before switching to another warm-up
mode.

26.3.5 Power Supply

The ADC block power (V ) is derived from the VDDX_ANA supply rail. VDDX_ANA can be selected from the AVDD or DVDD supply
ADC
pins using the EMU_PWRCTRL_ANASW bit field.
26.3.6 Input Pin Considerations
For external ADC inputs routed through the APORT, the maximum supported analog input voltage will be limited to the MIN(V
IOVDD) (where V is VDDX_ANA, as described in
ADC
OVT (by setting the corresponding GPIO_Px_OVTDIS bit) to reduce any potential distortion introduced by the OVT circuitry.
ADC external reference inputs are not routed through the APORT, and the maximum supported analog input voltage for an external
reference will also be limited to the MIN(V
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Conversion trigger
5 µs
1 µs
1 µs
26.3.5 Power
, IOVDD).
ADC
Conversion trigger
Supply). Note that pins configured as ADC inputs should disable
Reference Manual
ADC - Analog to Digital Converter
ADC standby/ slowacc
ADC warm-up
ADC conversion
ADC warmed up
waiting for trigger
NORMAL
Time
KEEPINSTANDBY/
KEEPINSLOWACC
Time
KEEPADCWARM
Time
Rev. 1.1 | 851
,
ADC