STM32F405VEY7 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
STM32F405VEY7 Datasheet PDF : 185 Pages
| |||
STM32F405xx, STM32F407xx
Electrical characteristics
Note:
a
Symbol
Table 68. ADC accuracy at fADC = 30 MHz(1)
Parameter
Test conditions
Typ
Max(2) Unit
ET Total unadjusted error
EO Offset error
EG Gain error
ED Differential linearity error
EL Integral linearity error
fPCLK2 = 60 MHz,
VfADDDCA==310.8M(3H) zto,
RAIN <
3.6 V
10
kΩ,
±2
±1.5
±1.5
±1
±1.5
±5
±2.5
±3
LSB
±2
±3
1. Better performance could be achieved in restricted VDD, frequency and temperature ranges.
2. Based on characterization, not tested in production.
3.
VanDdD/wViDthDAthme iunsime uomf avnaeluxeteornf a1l.7poVwiserosbutapipnleydswupheernvitshoer
device operates
(refer to Section
in reduced temperature
: Internal reset OFF).
range,
ADC accuracy vs. negative injection current: injecting a negative current on any analog
input pins should be avoided as this significantly reduces the accuracy of the conversion
being performed on another analog input. It is recommended to add a Schottky diode (pin to
ground) to analog pins which may potentially inject negative currents.
Any positive injection current within the limits specified for IINJ(PIN) and ΣIINJ(PIN) in
Section 5.3.16 does not affect the ADC accuracy.
Figure 50. ADC accuracy characteristics
4095
4094
4093
7
6
5
4
3
2
1
[1LSB
IDEAL
V
=
REF+
4096
(or
V DDA depending on package)]
4096
(2)
ET
(3)
EO
EL
ED
1L SBIDEAL
EG
(1)
0
1 2 3 456
VSSA
7
4093 4094 4095 4096
VDDA
1. See also Table 68.
2. Example of an actual transfer curve.
3. Ideal transfer curve.
4. End point correlation line.
5.
EEOT ==TOoftfasleUt nEarrdojur:sdteedviEatriroonr:bmetawxeimenumthedefivrisattiaocntubaelttwraenesnittiohne
actual and the ideal transfer
and the first ideal one.
curves.
ai14395c
DocID022152 Rev 4
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