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STM32F303RB bảng dữ liệu(PDF) 111 Page - STMicroelectronics

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Giải thích chi tiết về linh kiện  ARM®-based Cortex®-M4 32b MCUFPU, up to 256KB Flash 48KB SRAM, 4 ADCs, 2 DAC ch., 7 comp, 4 PGA, timers, 2.0-3.6 V
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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STM32F303RB bảng dữ liệu(HTML) 111 Page - STMicroelectronics

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STM32F303xB STM32F303xC
Electrical characteristics
124
SINAD
(5)
Signal-to-
noise and
distortion
ratio
ADC clock freq.
≤ 72 MHz,
Sampling freq.
≤ 5 Msps,
2 V
≤ VDDA, VREF+ ≤ 3.6 V
100-pin package
Single
Ended
Fast channel 5.1 Ms
64
-
dB
Slow channel 4.8 Ms
63
-
Differential
Fast channel 5.1 Ms
67
-
Slow channel 4.8 Ms
67
-
SNR(5)
Signal-to-
noise ratio
Single
Ended
Fast channel 5.1 Ms
64
-
Slow channel 4.8 Ms
64
-
Differential
Fast channel 5.1 Ms
67
-
Slow channel 4.8 Ms
67
-
THD(5)
Total
harmonic
distortion
Single
Ended
Fast channel 5.1 Ms
-
-74
Slow channel 4.8 Ms
-
-74
Differential
Fast channel 5.1 Ms
-
-78
Slow channel 4.8 Ms
-
-76
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 ΣIINJ(PIN) in Section 6.3.14 does not affect the ADC
accuracy.
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.
Table 71. ADC accuracy, 100-pin packages(1)(2)(3) (continued)
Symbol Parameter
Conditions
Min (4) Max(4) Unit



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