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STM32F411RET6 bảng dữ liệu(PDF) 116 Page - STMicroelectronics

tên linh kiện STM32F411RET6
Giải thích chi tiết về linh kiện  ARM® Cortex®-M4 32b MCUFPU, 125 DMIPS, 512KB Flash, 128KB RAM, USB OTG FS, 11 TIMs, 1 ADC, 13 comm. interfaces
PDF  149 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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STM32F411RET6 bảng dữ liệu(HTML) 116 Page - STMicroelectronics

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Electrical characteristics
STM32F411xC STM32F411xE
116/149
DocID026289 Rev 6
Note:
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 6.3.16 does not affect the ADC accuracy.
Table 69. ADC dynamic accuracy at fADC = 18 MHz - limited test conditions(1)
Symbol
Parameter
Test conditions
Min
Typ
Max
Unit
ENOB
Effective number of bits
fADC =18 MHz
VDDA = VREF+= 1.7 V
Input Frequency = 20 KHz
Temperature = 25 °C
10.3
10.4
-
bits
SINAD
Signal-to-noise and distortion ratio
64
64.2
-
dB
SNR
Signal-to-noise ratio
64
65
-
THD
Total harmonic distortion
-
-72
-67
1. Guaranteed by characterization results.
Table 70. ADC dynamic accuracy at fADC = 36 MHz - limited test conditions(1)
Symbol
Parameter
Test conditions
Min
Typ
Max
Unit
ENOB
Effective number of bits
fADC = 36 MHz
VDDA = VREF+ = 3.3 V
Input Frequency = 20 KHz
Temperature = 25 °C
10.6
10.8
-
bits
SINAD
Signal-to noise and distortion ratio
66
67
-
dB
SNR
Signal-to noise ratio
64
68
-
THD
Total harmonic distortion
-
-72
-70
1. Guaranteed by characterization results.



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