Datasheet

Electrical characteristics STM32F405xx, STM32F407xx
138/202 DocID022152 Rev 8
Figure 52. Power supply and reference decoupling (V
REF+
connected to V
DDA
)
1. V
REF+
and V
REF–
inputs are both available on UFBGA176. V
REF+
is also available on LQFP100, LQFP144,
and LQFP176. When V
REF+
and V
REF–
are not available, they are internally connected to V
DDA
and V
SSA
.
5.3.22 Temperature sensor characteristics
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Table 69. Temperature sensor characteristics
Symbol Parameter Min Typ Max Unit
T
L
(1)
V
SENSE
linearity with temperature - ±1 ±2°C
Avg_Slope
(1)
Average slope - 2.5 mV/°C
V
25
(1)
Voltage at 25 °C - 0.76 V
t
START
(2)
Startup time - 6 10 µs
T
S_temp
(2)
ADC sampling time when reading the temperature (1 °C accuracy) 10 - - µs
1. Guaranteed by characterization.
2. Guaranteed by design.
Table 70. Temperature sensor calibration values
Symbol Parameter Memory address
TS_CAL1 TS ADC raw data acquired at temperature of 30 °C, V
DDA
=3.3 V 0x1FFF 7A2C - 0x1FFF 7A2D
TS_CAL2 TS ADC raw data acquired at temperature of 110 °C, V
DDA
=3.3 V 0x1FFF 7A2E - 0x1FFF 7A2F