STM32F756VG Datasheet, PDF (153/228 Pages) STMicroelectronics – Up to 25 communication interfaces

STM32F756xx
Electrical characteristics
Table 71. internal reference voltage (continued)
Symbol
Parameter
Conditions
T_Coeff(2) Temperature coefficient
-
t_START(2) Startup time
-
1. Shortest sampling time can be determined in the application by multiple iterations.
2. Guaranteed by design.
Min _Typ
-
30
-
6
Max Unit
50 ppm/°C
10
µs
Table 72. Internal reference voltage calibration values
Symbol
Parameter
Memory address
V_{REFIN_CAL} Raw data acquired at temperature of 30 °C V_DDA = 3.3 V
0x1FF0 F44A - 0x1FF0 F44B
5.3.25 DAC electrical characteristics
Symbol
Parameter
Table 73. DAC characteristics
Min Typ Max Unit
Comments
V_DDA Analog supply voltage
1.7⁽¹⁾ -
V_REF+ Reference supply voltage
1.7⁽¹⁾ -
V_SSA Ground
0
-
R_LOAD(2) Resistive load with buffer ON 5
-
R_O(2)
Impedance output with buffer
OFF
-
-
C_LOAD(2) Capacitive load
-
-
3.6
V
-
3.6
V V_REF+ ≤V_DDA
0
V
-
-
kΩ
-
When the buffer is OFF, the Minimum
15 kΩ resistive load between DAC_OUT and
V_SS to have a 1% accuracy is 1.5 MΩ
50
pF
Maximum capacitive load at DAC_OUT
pin (when the buffer is ON).
DAC_OUT Lower DAC_OUT voltage
min⁽²⁾ with buffer ON
DAC_OUT Higher DAC_OUT voltage
max⁽²⁾ with buffer ON
DAC_OUT Lower DAC_OUT voltage
min⁽²⁾ with buffer OFF
DAC_OUT Higher DAC_OUT voltage
max⁽²⁾ with buffer OFF
I_VREF+(4)
DAC DC V_REF current
consumption in quiescent
mode (Standby mode)
0.2 -
It gives the maximum output excursion of
-
V _{the DAC.}
It corresponds to 12-bit input code
-
-
V_DDA −
0.2
(0x0E0) to (0xF1C) at V_REF+ = 3.6 V and
V _{(0x1C7) to (0xE38) at VREF+ = 1.7 V}
- 0.5
-
mV
It gives the maximum output excursion of
-
-
V_REF+ −
1LSB
the DAC.
V
With no load, worst code (0x800) at
- 170 240
V_REF+ = 3.6 V in terms of DC
consumption on the inputs
µA
With no load, worst code (0xF1C) at
-
50
75
V_REF+ = 3.6 V in terms of DC
consumption on the inputs
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