Datasheet

DocID028794 Rev 4 177/224
STM32L433xx Electrical characteristics
193
6.3.22 Temperature sensor characteristics
en
Voltage noise
density
Normal mode
at 1 kHz, Output
loaded with 4 k
-500-
nV/Hz
Low-power mode
at 1 kHz, Output
loaded with 20 k
-600-
Normal mode
at 10 kHz, Output
loaded with 4 k
-180-
Low-power mode
at 10 kHz, Output
loaded with 20 k
-290-
I
DDA
(OPAMP)
(3)
OPAMP
consumption
from V
DDA
Normal mode
no Load, quiescent
mode
- 120 260
µA
Low-power mode - 45 100
1. Guaranteed by design, unless otherwise specified.
2. The temperature range is limited to 0 °C-125 °C when V
DDA
is below 2 V
3. Guaranteed by characterization results.
4. Mostly I/O leakage, when used in analog mode. Refer to I
lkg
parameter in Table 70: I/O static characteristics.
5. R2 is the internal resistance between OPAMP output and OPAMP inverting input. R1 is the internal resistance between
OPAMP inverting input and ground. The PGA gain =1+R2/R1
Table 85. OPAMP characteristics
(1)
(continued)
Symbol Parameter Conditions Min Typ Max Unit
Table 86. TS characteristics
Symbol Parameter Min Typ Max Unit
T
L
(1)
V
TS
linearity with temperature - ±1 ±2 °C
Avg_Slope
(2)
Average slope 2.3 2.5 2.7 mV/°C
V
30
Voltage at 30°C (±5 °C)
(3)
0.742 0.76 0.785 V
t
START
(TS_BUF)
(1)
Sensor Buffer Start-up time in continuous mode
(4)
-815µs
t
START
(1)
Start-up time when entering in continuous mode
(4)
-70120µs
t
S_temp
(1)
ADC sampling time when reading the temperature 5 - - µs
I
DD
(TS)
(1)
Temperature sensor consumption from V
DD
, when
selected by ADC
-4.77 µA
1. Guaranteed by design.
2. Guaranteed by characterization results.
3. Measured at V
DDA
= 3.0 V ±10 mV. The V
30
ADC conversion result is stored in the TS_CAL1 byte. Refer to Table 8:
Temperature sensor calibration values.
4. Continuous mode means Run/Sleep modes, or temperature sensor enable in Low-power run/Low-power sleep modes.
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