EFM32LG332F256 Energy Micro, EFM32LG332F256 Datasheet - Page 36

• 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

3.11 Digital Analog Converter (DAC)
2012-09-11 - EFM32LG332FXX - d0111_Rev1.00
Figure 3.20. ADC Temperature sensor readout
Table 3.16. DAC
Symbol
V
V
I
SR
f
CYC
t
t
SNR
DAC
DAC
DACCONV
DACSETTLE
DACOUT
DACCM
DAC
2600
2500
2400
2300
2200
2100
DACCONV
DAC
–40
–25 –15
Parameter
Output voltage range
Output common mode volt-
age range
Active current including ref-
erences for 2 channels
Sample rate
DAC clock frequency
Clock cyckles per conver-
sion
Conversion time
Settling time
Signal to Noise Ratio
(SNR)
–5
5
Tem perat ure [ ° C]
15
25
35
Preliminary
45
55
65
Condition
VDD voltage reference, single
ended
VDD voltage reference, differ-
ential
500 kSamples/s, 12bit
100 kSamples/s, 12 bit
1 kSamples/s 12 bit NORMAL
Continuous Mode
Sample/Hold Mode
Sample/Off Mode
500 kSamples/s, 12 bit, sin-
gle ended, internal 1.25V ref-
erence
500 kSamples/s, 12 bit, sin-
gle ended, internal 2.5V refer-
ence
500 kSamples/s, 12 bit, dif-
ferential, internal 1.25V refer-
ence
Vdd= 1.8
Vdd= 3
Vdd= 3.8
75
85
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36
Min
-V
DD
0
0
2
Typ
www.energymicro.com
400
200
38
58
59
58
2
5
Max
1000 kHz
V
V
V
500 ksam-
250 kHz
250 kHz
DD
DD
DD
Unit
V
V
V
µA
µA
µA
ples/s
µs
µs
dB
dB
dB