EFM32ZG222 Datasheet, PDF (41/70 Pages) Silicon image – Energy, gas, water and smart metering

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Figure 3.33. ADC Temperature sensor readout
2800
2700
2600
2500
2400
2300
2200
2100
2000
1900
–4 0
Vdd = 2.0
Vdd = 3.0
Vdd = 3.8
–1 5
5
25
45
65
85
Tem perature [°C]
3.11 Current Digital Analog Converter (IDAC)
Table 3.15. IDAC Range 0 Source
Symbol
I_IDAC
I_0x10
I_STEP
I_D
TC_IDAC
VC_IDAC
Parameter
Condition
Min
Active current with
STEPSEL=0x10
EM0, default settings
Duty-cycled
Nominal IDAC out-
put current with
STEPSEL=0x10
Step size
Current drop at high V_{IDAC_OUT} = V_DD - 100mV
impedance load
Temperature coeffi- V_DD = 3.0V, STEPSEL=0x10
cient
Voltage coefficient T = 25 °C, STEPSEL=0x10
Table 3.16. IDAC Range 0 Sink
Typ
Max
11.7
10
0.84
0.049
0.73
0.3
11.7
Symbol
I_IDAC
I_0x10
I_STEP
I_D
TC_IDAC
VC_IDAC
Parameter
Condition
Min
Active current with EM0, default settings
STEPSEL=0x10
Nominal IDAC out-
put current with
STEPSEL=0x10
Step size
Current drop at high V_{IDAC_OUT} = 200 mV
impedance load
Temperature coeffi- V_DD = 3.0 V, STEPSEL=0x10
cient
Voltage coefficient T = 25 °C, STEPSEL=0x10
Typ
Max
13.7
0.84
0.050
0.16
0.2
12.5
Unit
µA
nA
µA
µA
%
nA/°C
nA/V
Unit
µA
µA
µA
%
nA/°C
nA/V
2015-03-06 - EFM32ZG222FXX - d0066_Rev1.10
41
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