STM32F302CBT6 STMicroelectronics, STM32F302CBT6 Datasheet - Page 110

• Manufacturer Part Number: STM32F302CBT6
• Description: ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 128kB MCU FPU
• Manufacturer: STMicroelectronics

Specifications of STM32F302CBT6

• Product Category: ARM Microcontrollers - MCU
• Rohs: yes
• Core: ARM Cortex M4
• Data Bus Width: 32 bit

Electrical characteristics
Table 69.
1. ADC DC accuracy values are measured after internal calibration.
2. ADC accuracy vs. negative Injection Current: Injecting negative current on any analog input pins should be avoided as this
3. Better performance may be achieved in restricted V
4. Data based on characterization results, not tested in production.
Figure 32. ADC accuracy characteristics
110/133
Symbol
SINAD
SNR
THD
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 current.
Any positive injection current within the limits specified for I
accuracy.
4095
4094
4093
7
6
5
4
3
2
1
0
V
SSA
[1LSB
Signal-to-
noise ratio
distortion ratio
Parameter
Signal-to-
noise and
harmonic
distortion
1
ADC accuracy
E
Total
IDEAL
O
2
=
V
4096
3
REF+
4
2V ≤ V
(or
Sampling freq. ≤ 5
ADC clock freq.
(1)(2)(3)
V
5
1 LSB
4096
DDA
≤ 72 MHz,
DDA
Msps,
3.6 V
E
6
T
IDEAL
depending on package)]
, V
E
(continued)
7
L
REF+
(2)
Doc ID 023353 Rev 5
≤
E
D
DDA
4093 4094 4095 4096
(3)
Conditions
, frequency and temperature ranges.
Single Ended
Single Ended
Single Ended
Differential
Differential
Differential
INJ(PIN)
(1)
E
and ΣI
G
V
DDA
INJ(PIN)
Slow channel 4.8 Ms
Slow channel 4.8 Ms
Slow channel 4.8 Ms
Slow channel 4.8 Ms
Slow channel 4.8 Ms
Slow channel 4.8 Ms
Fast channel 5.1 Ms
Fast channel 5.1 Ms
Fast channel 5.1 Ms
Fast channel 5.1 Ms
Fast channel 5.1 Ms
Fast channel 5.1 Ms
(1) Example of an actual transfer curve
(2) The ideal transfer curve
(3) End point correlation line
E
between the actual and the ideal transfer curves.
E
transition and the first ideal one.
E
transition and the last actual one.
E
between actual steps and the ideal one.
E
between any actual transition and the end point
correlation line.
T
O
G
D
L
=Total Unadjusted Error: maximum deviation
=Integral Linearity Error: maximum deviation
=Differential Linearity Error: maximum deviation
=Offset Error: deviation between the first actual
=Gain Error: deviation between the last ideal
in
Section 6.3.14
STM32F302xx/STM32F303xx
does not affect the ADC
Min
64
64
67
67
-
-
-
-
-
-
-
-
(4)
Max
−71
−69
−73
−70
63
63
67
67
-
-
-
-
(4)
ai14395b
Unit
dB