STM32WB15CC datasheet(103/127 Pages) STMICROELECTRONICS

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DS13258 Rev 4

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STM32WB15CC

Electrical characteristics

115

6.3.18

Analog switches booster

6.3.19

Analog-to-Digital converter characteristics

Unless otherwise specified, the parameters given in Table 69 are preliminary values derived

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

conditions summarized in Table 21: General operating conditions.

Note:

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

Table 68. Analog switches booster characteristics(1)

1. Specified by design, not tested in production.

Symbol

Parameter

Min

Typ

Max

Unit

VDD

Supply voltage

1.71

3.6

tSU(BOOST)

Booster startup time

240

µs

IDD(BOOST)

Booster consumption for



1.71 V ≤ VDD ≤ 2.0 V

250

µA

Booster consumption for



2.0 V ≤ VDD ≤ 2.7 V

500

Booster consumption for



2.7 V ≤ VDD ≤ 3.6 V

900

Table 69. ADC characteristics(1) (2)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VDDA

Analog supply voltage

1.62

3.6

fADC

ADC clock frequency

0.14

MHz

Sampling rate

12 bits, VDDA ≤ 2.0 V

2.18

Msps

10 bits, VDDA ≤ 2.0 V

2.50

8 bits, VDDA ≤ 2.0 V

2.92

6 bits, VDDA ≤ 2.0 V

3.50

12 bits, VDDA > 2.0 V

2.50

10 bits, VDDA > 2.0 V

2.92

8 bits, VDDA > 2.0 V

3.50

6 bits, VDDA > 2.0 V

4.38

fTRIG

External trigger

frequency

fADC = 35 MHz

12 bits, VDDA ≤ 2.0 V

2.18

MHz

fADC = 35 MHz

12 bits, VDDA > 2.0 V

2.33

12 bits, VDDA ≤ 2.0 V

fADC/16

12 bits, VDDA > 2.0 V

fADC/15

VAIN (3)

Conversion voltage

range(2)

-0

VDDA

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