STM32WB55VC 查看數據表（PDF） - STMicroelectronics

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STM32WB55VC

Multiprotocol wireless 32-bit MCU Arm®-based Cortex®-M4 with FPU, Bluetooth® 5 and 802.15.4 radio solution

STMicroelectronics 

Electrical characteristics

STM32WB55xx STM32WB35xx

6.3.20 Analog-to-Digital converter characteristics

Note:

Unless otherwise specified, the parameters given in Table 77 are preliminary values derived

from tests performed under ambient temperature, fPCLK frequency and VDDA supply voltage

conditions summarized in Table 24: General operating conditions.

It is recommended to perform a calibration after each power-up.

Symbol

Table 77. ADC characteristics(1) (2) (3)

Parameter

Conditions

Min

Typ

Max

Unit

VDDA

VREF+

VREF-

fADC

fs

fTRIG

VCMIN

VAIN (4)

RAIN

CADC

tSTAB

tCAL

Analog supply voltage

Positive reference

voltage

Negative reference

voltage

ADC clock frequency

Sampling rate

for FAST channels

Sampling rate

for SLOW channels

External trigger

frequency

-

VDDA ≥ 2 V

VDDA < 2 V

-

Range 1

Range 2

Resolution = 12 bits

Resolution = 10 bits

Resolution = 8 bits

Resolution = 6 bits

Resolution = 12 bits

Resolution = 10 bits

Resolution = 8 bits

Resolution = 6 bits

fADC = 64 MHz

Resolution = 12 bits

Resolution = 12 bits

Input common mode

Differential mode

Conversion voltage

range(2)

-

External input

impedance

-

Internal sample and hold

capacitor

-

Power-up time

-

Calibration time

fADC = 64 MHz

-

1.62

2

0.14

0.14

-

-

-

-

-

-

-

-

-

-

VDDA

VSSA

-

-

-

-

-

-

-

-

-

-

3.6

VDDA

64

16

4.26

4.92

5.81

7.11

3.36

4.00

4.57

7.11

-

-

4.26

-

-

15

(VREF++

VREF-) / 2

- 0.18

(VREF++

VREF-) / 2

(VREF++

VREF-) / 2

+ 0.18

0

-

VREF+

-

-

50

-

5

-

1

1.8125

116

V

V

V

V

MHz

Msps

MHz

1/fADC

V

V

kΩ

pF

Conversion

cycle

µs

1 / fADC

140/193

DS11929 Rev 10

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