EFM32LG332F256 Energy Micro, EFM32LG332F256 Datasheet - Page 26

• Manufacturer Part Number: EFM32LG332F256
• Description: ARM Microcontrollers - MCU 256KB FL 32KB RAM
• Manufacturer: Energy Micro
• Series: EFM32LG332r

Specifications of EFM32LG332F256

• Rohs: yes
• Core: ARM Cortex M3
• Processor Series: EFM32
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 48 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 32 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 1.85 V to 3.8 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: QFP-64
• Mounting Style: SMD/SMT
• Interface Type: I2C, I2S, SPI, UART, USART
• Length: 10 mm

3.9.5 ULFRCO
3.10 Analog Digital Converter (ADC)
2012-09-11 - EFM32LG332FXX - d0111_Rev1.00
Figure 3.12. Calibrated HFRCO 28 MHz Band Frequency vs Temperature and Supply Voltage
Table 3.14. ULFRCO
Table 3.15. ADC
Symbol
f
TC
VC
Symbol
V
V
V
V
V
I
CMRR
I
ULFRCO
ADCIN
ADC
ADCIN
ADCREFIN
ADCREFIN_CH7
ADCREFIN_CH6
ADCCMIN
ULFRCO
ULFRCO
28.1
28.0
27.9
27.8
27.7
27.6
27.5
27.4
1.8
ADC
2.2
Parameter
Oscillation frequency
Temperature coefficient
Supply voltage coefficient
Parameter
Input voltage range
Input range of external ref-
erence voltage, single end-
ed and differential
Input range of external neg-
ative reference voltage on
channel 7
Input range of external pos-
itive reference voltage on
channel 6
Common mode input range
Input current
Analog input common
mode rejection ratio
Average active current
2.6
Vdd [ V]
3.0
Preliminary
3.4
Condition
25°C, 3V
Condition
Single ended
Differential
See V
See V
2pF sampling capacitors
1 MSamples/s, 12 bit, exter-
nal reference
10 kSamples/s 12 bit, internal
1.25 V reference, WARMUP-
-40° C
25° C
85° C
ADCREFIN
ADCREFIN
3.8
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26
28.1
28.0
27.9
27.8
27.7
27.6
27.5
27.4
–40
1.8 V
3 V
3.8 V
–15
Min
Min
-V
0.625
REF
1.25
0.8
5
/2
Tem perat ure [ ° C]
0
0
0
Typ
Typ
25
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-18.2
<100
0.05
351
65
67
45
Max
Max
V
DD
V
REF
V
- 1.1 V
65
V
V
V
REF
1.5 kHz
DD
DD
DD
/2 V
Unit
%/°C
%/V
Unit
V
V
V
V
nA
dB
µA
µA
85