Silicon Laboratories BGM11S Series, Manual, Page: 33 / 94

4.1.13 ADC
For the table below, see Figure 3.2 Power Supply Configuration on page 9 on page 5 to see the relation between the modules external
VDD pin and internal voltage supplies. The module itself has only one external power supply input (VDD).
Table 4.22. ADC
Parameter Symbol Test Condition Min Typ Max Unit
Resolution V
RESOLUTION
6 — 12 Bits
Input voltage range V
ADCIN
Single ended 0 — 2*V
REF
V
Differential -V
REF
— V
REF
V
Input range of external refer-
ence voltage, single ended
and differential V
ADCREFIN_P
1 — V
AVDD
V
Power supply rejection
1 PSRR
ADC
At DC — 80 — dB
Analog input common mode
rejection ratio CMRR
ADC
At DC — 80 — dB
Current from all supplies, us-
ing internal reference buffer.
Continous operation. WAR-
MUPMODE
2
= KEEPADC-
WARM
I
ADC_CONTI-
NOUS_LP
1 Msps / 16 MHz ADCCLK,
BIASPROG = 0, GPBIASACC = 1
3
— 301 350 μA
250 ksps / 4 MHz ADCCLK, BIA-
SPROG = 6, GPBIASACC = 1
3
— 149 — μA
62.5 ksps / 1 MHz ADCCLK,
BIASPROG = 15, GPBIASACC =
1
3
— 91 — μA
Current from all supplies, us-
ing internal reference buffer.
Duty-cycled operation. WAR-
MUPMODE
2
= NORMAL
I
ADC_NORMAL_LP
35 ksps / 16 MHz ADCCLK,
BIASPROG = 0, GPBIASACC = 1
3
— 51 — μA
5 ksps / 16 MHz ADCCLK
BIASPROG = 0, GPBIASACC = 1
3
— 9 — μA
Current from all supplies, us-
ing internal reference buffer.
Duty-cycled operation.
AWARMUPMODE
2
= KEEP-
INSTANDBY or KEEPIN-
SLOWACC
I
ADC_STAND-
BY_LP
125 ksps / 16 MHz ADCCLK,
BIASPROG = 0, GPBIASACC = 1
3
— 117 — μA
35 ksps / 16 MHz ADCCLK,
BIASPROG = 0, GPBIASACC = 1
3
— 79 — μA
BGM11S Blue Gecko Bluetooth
®
SiP Module Data Sheet
Electrical Specifications
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