EFR32BG1 Datasheet, PDF (79/163 Pages) Silicon Laboratories – Home and Building Automation

4.1.16 ADC
EFR32BG1 Blue Gecko Bluetooth® Smart SoC Family Data Sheet
Electrical Specifications
Table 4.39. ADC
Parameter
Symbol
Test Condition
Resolution
Input voltage range
V_RESOLUTION
V_ADCIN
Single ended
Differential
Input range of external refer- V_{ADCREFIN_P}
ence voltage, single ended
and differential
Power supply rejection¹
PSRR_ADC
Analog input common mode CMRR_ADC
rejection ratio
At DC
At DC
Current from all supplies, us-
ing internal reference buffer.
Continous operation. WAR-
MUPMODE² = KEEPADC-
WARM
I_{ADC_CONTI-}
NOUS_LP
1 Msps / 16 MHz ADCCLK,
BIASPROG = 0, GPBIASACC = 1
3
250 ksps / 4 MHz ADCCLK, BIA-
SPROG = 6, GPBIASACC = 1 ³
62.5 ksps / 1 MHz ADCCLK,
BIASPROG = 15, GPBIASACC =
1³
Current from all supplies, us-
ing internal reference buffer.
Duty-cycled operation. WAR-
MUPMODE² = NORMAL
I_{ADC_NORMAL_LP}
35 ksps / 16 MHz ADCCLK,
BIASPROG = 0, GPBIASACC = 1
3
5 ksps / 16 MHz ADCCLK
BIASPROG = 0, GPBIASACC = 1
3
Current from all supplies, us-
ing internal reference buffer.
Duty-cycled operation.
AWARMUPMODE² = KEEP-
INSTANDBY or KEEPIN-
SLOWACC
I_{ADC_STAND-}
BY_LP
125 ksps / 16 MHz ADCCLK,
BIASPROG = 0, GPBIASACC = 1
3
35 ksps / 16 MHz ADCCLK,
BIASPROG = 0, GPBIASACC = 1
3
Current from all supplies, us-
ing internal reference buffer.
Continous operation. WAR-
MUPMODE² = KEEPADC-
WARM
I_{ADC_CONTI-}
NOUS_HP
1 Msps / 16 MHz ADCCLK,
BIASPROG = 0, GPBIASACC = 0
3
250 ksps / 4 MHz ADCCLK, BIA-
SPROG = 6, GPBIASACC = 0 ³
62.5 ksps / 1 MHz ADCCLK,
BIASPROG = 15, GPBIASACC =
0³
Min
6
0
-V_REF
1
—
—
—
—
—
—
—
—
—
—
—
—
Typ
Max
Unit
—
12
Bits
—
2*V_REF
V
—
V_REF
V
—
V_AVDD
V
80
—
dB
80
—
dB
301
350
μA
149
—
μA
91
—
μA
51
—
μA
9
—
μA
117
—
μA
79
—
μA
345
—
μA
191
—
μA
132
—
μA
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