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STM32H7 bảng dữ liệu(PDF) 170 Page - STMicroelectronics

tên linh kiện STM32H7
Giải thích chi tiết về linh kiện  32-bit Arm® Cortex®-M7 480MHz MCUs, up to 2MB flash, up to 1MB RAM, 46 com. and analog interfaces
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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Electrical characteristics (rev Y)
STM32H742xI/G STM32H743xI/G
170/357
DS12110 Rev 10
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
Table 88. ADC accuracy(1)(2)(3)
1. Guaranteed by characterization for BGA packages, the values for LQFP packages might differ.
2. ADC DC accuracy values are measured after internal calibration.
3. The above table gives the ADC performance in 16-bit mode.
Symbol
Parameter
Conditions(4)
4. ADC clock frequency
≤ 36 MHz, 2 V ≤ VDDA ≤3.3 V, 1.6 V ≤ VREF ≤ VDDA, BOOSTEN (for I/O) = 1.
Min
Typ
Max
Unit
ET
Total
unadjusted
error
Single
ended
BOOST = 1
-
±6
-
±LSB
BOOST = 0
-
±8
-
Differential
BOOST = 1
-
±10
-
BOOST = 0
-
±16
-
ED
Differential
linearity
error
Single
ended
BOOST = 1
-
2
-
BOOST = 0
-
1
-
Differential
BOOST = 1
-
8
-
BOOST = 0
-
2
-
EL
Integral
linearity
error
Single
ended
BOOST = 1
-
±6
-
BOOST = 0
-
±4
-
Differential
BOOST = 1
-
±6
-
BOOST = 0
-
±4
-
ENOB(5)
5. ENOB, SINAD, SNR and THD are specified for VDDA = VREF = 3.3 V.
Effective
number of
bits
(2 MSPS)
Single
ended
BOOST = 1
-
11.6
-
bits
BOOST = 0
-
12
-
Differential
BOOST = 1
-
13.3
-
BOOST = 0
-
13.5
-
SINAD(5)
Signal-to-
noise and
distortion
ratio
(2 MSPS)
Single
ended
BOOST = 1
-
71.6
-
dB
BOOST = 0
-
74
-
Differential
BOOST = 1
-
81.83
-
BOOST = 0
-
83
-
SNR(5)
Signal-to-
noise ratio
(2 MSPS)
Single
ended
BOOST = 1
-
72
-
BOOST = 0
-
74
-
Differential
BOOST = 1
-
82
-
BOOST = 0
-
83
-
THD(5)
Total
harmonic
distortion
Single
ended
BOOST = 1
-
−78
-
BOOST = 0
-
−80
-
Differential
BOOST = 1
-
−90
-
BOOST = 0
-
−95
-



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