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STM32F401CB Folha de dados(PDF) 107 Page - STMicroelectronics

Nome de Peças STM32F401CB
Descrição Electrónicos  ARM Cortex-M4 32b MCUFPU, 105 DMIPS, 256KB Flash/64KB RAM, 11 TIMs, 1 ADC, 11 comm. interfaces
PDF  135 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32F401CB Folha de dados(HTML) 107 Page - STMicroelectronics

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Electrical characteristics
STM32F401xB STM32F401xC
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DocID024738 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 70. ADC dynamic accuracy at fADC = 18 MHz - limited test conditions(1)
1. Guaranteed by characterization.
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
-67 -72
-
Table 71. ADC dynamic accuracy at fADC = 36 MHz - limited test conditions(1)
1. Guaranteed by characterization.
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
-70
-72
-



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