STM32F302CCY6TR 查看數據表（PDF） - STMicroelectronics
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STM32F302CCY6TR
STMicroelectronics
STM32F302CCY6TR Datasheet PDF : 144 Pages
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Electrical characteristics
STM32F302xB STM32F302xC
Table 73. ADC accuracy, 64-pin packages(1)(2)(3) (continued)
Symbol Parameter
Conditions
Min(4)
Max
(4)
Unit
Fast channel 5.1 Ms 64
Single ended
SNR(5)
Signal-to-
noise ratio
ADC clock freq. ≤ 72 MHz,
Differential
Slow channel 4.8 Ms
Fast channel 5.1 Ms
64
67
Sampling freq ≤ 5 Msps,
Slow channel 4.8 Ms 67
Total
THD(5) harmonic
distortion
2 V ≤ VDDA ≤ 3.6 V
64-pin package
Fast channel 5.1 Ms
-
Single ended
Slow channel 4.8 Ms
-
Fast channel 5.1 Ms
-
Differential
Slow channel 4.8 Ms
-
-
-
-
-
dB
-75
-75
-79
-78
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
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
accuracy.
injection
current
within
the
limits
specified
for
IINJ(PIN)
and
ΣIINJ(PIN)
in
Section
6.3.14
does
not
affect
the
ADC
3. Better performance may be achieved in restricted VDDA, frequency and temperature ranges.
4. Guaranteed by characterization results.
5. Value measured with a -0.5 dB full scale 50 kHz sine wave input signal.
Symbol
Parameter
Table 74. ADC accuracy at 1MSPS(1)(2)
Test conditions
Typ
Max(3) Unit
ET Total unadjusted error
Fast channel
Slow channel
Fast channel
EO Offset error
Slow channel
ADC Freq ≤ 72 MHz
EG Gain error
Sampling Freq ≤ 1MSPS
Fast channel
2.4 V ≤ VDDA = VREF+ ≤ 3.6 V Slow channel
Single-ended mode
Fast channel
ED Differential linearity error
Slow channel
EL Integral linearity error
Fast channel
Slow channel
±2.5
±5
±3.5
±5
±1
±2.5
±1.5
±2.5
±2
±3
LSB
±3
±4
±0.7
±2
±0.7
±2
±1
±3
±1.2
±3
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
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 IINJ(PIN) and ∑IINJ(PIN) in Section 6.3.14: I/O port characteristics does not affect the ADC
accuracy.
3. Guaranteed by characterization results.
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