EFM32GG940 Datasheet, PDF (36/68 Pages) List of Unclassifed Manufacturers – EFM32GG940 DATASHEET

Preliminary
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Figure 3.20. ADC Temperature sensor readout
2600
2500
Vdd= 1.8
Vdd= 3
Vdd= 3.8
2400
2300
2200
2100
–4 0
–25 –15 –5 5 15 25 35 45 55 65 75 85
Tem perat ure [ ° C]
3.11 Digital Analog Converter (DAC)
Table 3.16. DAC
Symbol
Parameter
Condition
Min
Typ
Max
Unit
V_DACOUT
Output voltage range
VDD voltage reference, single
ended
VDD voltage reference, differ-
ential
0
-V_DD
V_DD V
V_DD V
V_DACCM
Output common mode volt-
age range
0
V_DD V
500 kSamples/s, 12bit
I_DAC
Active current including ref-
erences for 2 channels
100 kSamples/s, 12 bit
1 kSamples/s 12 bit NORMAL
400
µA
200
µA
38
µA
SR_DAC
Sample rate
500 ksam-
ples/s
Continuous Mode
1000 kHz
f_DAC
DAC clock frequency
Sample/Hold Mode
Sample/Off Mode
250 kHz
250 kHz
CYC_DACCONV Clock cyckles per conver-
2
sion
t_DACCONV
Conversion time
2
µs
t_DACSETTLE
Settling time
5
µs
500 kSamples/s, 12 bit, sin-
gle ended, internal 1.25V ref-
erence
58
dB
SNR_DAC
Signal to Noise Ratio
(SNR)
500 kSamples/s, 12 bit, sin-
gle ended, internal 2.5V refer-
ence
59
dB
500 kSamples/s, 12 bit, dif-
ferential, internal 1.25V refer-
ence
58
dB
2012-09-11 - EFM32GG940FXX - d0044_Rev1.00
36
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