GD32H757VMT7 datasheet(113/151 Pages) GIGADEVICE

tên linh kiện	GD32H757VMT7

Giải thích chi tiết về linh kiện	Arm® Cortex®-M7 32-bit MCU

PDF	151 Pages

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nhà sản xuất	GIGADEVICE [GigaDevice Semiconductor (Beijing) Inc.]

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113 / 151 page

GD32H757xx Datasheet

112

Symbol

Parameter

Conditions

Min

Typ Max Unit

VAIN

Conversion

voltage

range

—

VREF

VCMIV

Common

mode input

voltage

—

VREFP/

10%

VREFP/

VREF

/2-

10%

RAIN

External

input

impedance

Resolution = 12 bits

—

109

Resolution = 10 bits

—

128

Resolution = 8 bits

—

153

Resolution = 6 bits

—

192

RADC

Internal

resistance

—

250

—

CADC

Input

capacitanc

—

7.5

—

tSTAB

ADC

Power-up

time

—

μs

tOFF_ CAL

Offset

calibration

time

—

— 1/fADC

Sampling

time

—

2.5

—

640.

1/fADC

tCONV

Total

conversion

time

(including

sampling

time)

Resolution = N bits

3+N

—

— 1/ fADC

(1)

Value guaranteed by design, not 100% tested in production.

(2)

Depending on the package, VREFP can be internally connected to VDDA and VREFN to VSSA.

(3)

VREFP should always be equal to or less than VDDA, especially during power up.

Table 4-36. ADC RAIN max for fADC = 80 MHz (12-bit ADC) (1)(2)

Resolution

Sampling cycles @ 80 MHz

RAIN max (kΩ)

12 bits

2.5

0.17

6.5

0.86

12.5

1.89

24.5

3.95

47.5

7.90

92.5

15.6

247.5

42.2

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