STM32H747AI datasheet(193/252 Pages) STMICROELECTRONICS

193 / 252 page

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

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

Offset error

±10

Gain error

±15

Differential linearity error

Single ended

+3/–1

Differential

+4.5/–1

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

Differential

81.2

SNR

Signal-to-noise ratio

Single ended

77.0

Differential

81.0

THD

Total harmonic distortion

Single ended

Differential

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.

STM32H747AI bảng dữ liệu(PDF) 193 Page - STMicroelectronics

STM32H747AI bảng dữ liệu(HTML) 193 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

bảng dữ liệu tải về

Link URL