Datasheet

Electrical characteristics STM32L072xx
108/149 DocID027100 Rev 4
6.3.17 Temperature sensor characteristics
6.3.18 Comparators
Table 68. Temperature sensor calibration values
Calibration value name Description Memory address
TS_CAL1
TS ADC raw data acquired at
temperature of 30 °C, V
DDA
= 3 V
0x1FF8 007A - 0x1FF8 007B
TS_CAL2
TS ADC raw data acquired at
temperature of 130 °C, V
DDA
= 3 V
0x1FF8 007E - 0x1FF8 007F
Table 69. Temperature sensor characteristics
Symbol Parameter Min Typ Max Unit
T
L
(1)
1. Guaranteed by characterization results.
V
SENSE
linearity with temperature - ±1 ±2°C
Avg_Slope
(1)
Average slope 1.48 1.61 1.75 mV/°C
V
130
Voltage at 130°C ±5°C
(2)
2. Measured at V
DD
= 3 V ±10 mV. V130 ADC conversion result is stored in the TS_CAL2 byte.
640 670 700 mV
I
DDA
(TEMP)
(3)
Current consumption - 3.4 6 µA
t
START
(3)
3. Guaranteed by design.
Startup time - - 10
µs
T
S_temp
(4)(3)
4. Shortest sampling time can be determined in the application by multiple iterations.
ADC sampling time when reading the temperature 10 - -
Table 70. Comparator 1 characteristics
Symbol Parameter Conditions Min
(1)
Typ Max
(1)
Unit
V
DDA
Analog supply voltage - 1.65 3.6 V
R
400K
R
400K
value - - 400 -
kΩ
R
10K
R
10K
value - - 10 -
V
IN
Comparator 1 input voltage
range
-0.6-V
DDA
V
t
START
Comparator startup time - - 7 10
µs
td Propagation delay
(2)
--310
Voffset Comparator offset - - ±3 ±10 mV
d
Voffset
/dt
Comparator offset variation in
worst voltage stress conditions
V
DDA
= 3.6 V, V
IN+
= 0 V,
V
IN-
= V
REFINT
, T
A
= 25 ° C
0 1.5 10 mV/1000 h
I
COMP1
Current consumption
(3)
- - 160 260 nA
1. Guaranteed by characterization.
2. The delay is characterized for 100 mV input step with 10 mV overdrive on the inverting input, the non-inverting input set to
the reference.
3. Comparator consumption only. Internal reference voltage not included.
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