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STM32H747AI 데이터시트(PDF) 193 Page - STMicroelectronics

부품명 STM32H747AI
상세설명  Dual 32-bit Arm® Cortex®-M7 up to 480MHz and -M4 MCUs, up to 2MB Flash, 1MB RAM, 46 com. and analog interfaces, SMPS, DSI
PDF  252 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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STM32H747AI 데이터시트(HTML) 193 Page - STMicroelectronics

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DS12930 Rev 1
183/242
STM32H747xI/G
Electrical characteristics
221
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 6.3.17 does not affect the ADC accuracy.
Table 100. ADC accuracy(1)(2)
Symbol
Parameter
Conditions(3)
Min
Typ
Max
Unit
ET
Total undadjusted error
Direct
channel
Single ended
-
+10/–20
-
LSB
Differential
-
±15
-
Fast channel
Single ended
-
+10/–20
-
Differential
-
±15
-
Slow
channel
Single ended
-
±10
-
Differential
±10
-
EO
Offset error
-
-
±10
-
EG
Gain error
-
-
±15
-
ED
Differential linearity error
Single ended
-
+3/–1
-
Differential
-
+4.5/–1
-
EL
Integral linearity error
Direct
channel
Single ended
-
±11
-
Differential
-
±7
-
Fast channel
Single ended
-
±13
-
Differential
-
±7
-
Slow
channel
Single ended
-
±10
-
Differential
-
±6
-
ENOB
Effective number of bits
Single ended
-
12.2
-
Bits
Differential
-
13.2
-
SINAD
Signal-to-noise and
distortion ratio
Single ended
-
75.2
-
dB
Differential
-
81.2
-
SNR
Signal-to-noise ratio
Single ended
-
77.0
-
Differential
-
81.0
-
THD
Total harmonic distortion
Single ended
-
87
-
Differential
-
90
-
1. Data guaranteed by characterization for BGA packages. The values for LQFP packages might differ.
2. ADC DC accuracy values are measured after internal calibration.
3. ADC clock frequency = 25 MHz, ADC resolution = 16 bits, VDDA=VREF+=3.3 V and BOOST=11.



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