EFM8BB3 Datasheet, PDF (20/70 Pages) Silicon Laboratories – The EFM8BB3 device family are fully integrated, mixed-signal system-on-a-chip MCUs. Highlighted features are listed below

4.1.9 ADC
Table 4.9. ADC
Parameter
Resolution
Throughput Rate
(High Speed Mode)
Throughput Rate
(Low Power Mode)
Tracking Time
Power-On Time
SAR Clock Frequency
Conversion Time¹
Sample/Hold Capacitor
Input Pin Capacitance
Input Mux Impedance
Voltage Reference Range
Input Voltage Range²
Symbol
N_bits
f_S
Test Condition
12 Bit Mode
10 Bit Mode
10 Bit Mode
f_S
t_TRK
t_PWR
f_SAR
t_CNV
C_SAR
C_IN
R_MUX
V_REF
V_IN
12 Bit Mode
10 Bit Mode
High Speed Mode
Low Power Mode
High Speed Mode
Low Power Mode
12-Bit Conversion,
SAR Clock =18 MHz,
System Clock = 49 MHz
10-Bit Conversion,
SAR Clock =18 MHz,
System Clock = 49 MHz
Gain = 1
Gain = 0.75
Gain = 0.5
Gain = 0.25
Gain = 1
Power Supply Rejection Ratio
DC Performance
Integral Nonlinearity
Differential Nonlinearity (Guaran-
teed Monotonic)
Offset Error
PSRR_ADC
INL
DNL
E_OFF
12 Bit Mode
10 Bit Mode
12 Bit Mode
10 Bit Mode
12 Bit Mode
10 Bit Mode
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EFM8BB3 Data Sheet
Electrical Specifications
Min
Typ
Max
Unit
12
Bits
10
Bits
—
—
1.125
Msps
—
—
350
ksps
—
—
1.125
Msps
230
—
—
ns
450
—
—
ns
1.2
—
—
μs
—
—
18
MHz
—
—
TBD
MHz
0.7
μs
0.59
μs
—
5.2
—
pF
—
3.9
—
pF
—
2.6
—
pF
—
1.3
—
pF
—
20
—
pF
—
550
—
Ω
1
—
V_IO
V
0
—
V_REF /
V
Gain
—
TBD
—
dB
-1.9
-0.35 / 1
1.9
LSB
-0.6
±0.2
0.6
LSB
-0.9
±0.3
0.9
LSB
-0.5
±0.2
0.5
LSB
-2
0
2
LSB
-1
0
1
LSB
Preliminary Rev. 0.2 | 19