STM32U073RCY3 datasheet(88/146 Pages) STMICROELECTRONICS

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Symbol

Parameter

Min

Typ

Max

Unit

IDD(BOOST)

Booster consumption for

1.62 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

6.3.18

Analog-to-digital converter characteristics

Unless otherwise specified, the parameters given in Table 70. ADC characteristics are preliminary values derived

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

summarized in Section 6.3.1: General operating conditions.

Note:

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

Table 70. ADC characteristics

Specified by design, not tested in production.

Symbol

Parameter

Conditions(1)

Min

Typ

Max

Unit

VDDA

Analog supply voltage

1.62

3.6

VREF+

Positive reference voltage

VDDA ≥ 2 V

VDDA

VDDA < 2 V

VDDA

fADC

ADC clock frequency

Range 1

0.14

MHz

Range 2

0.14

Sampling rate

12 bits

2.50

MSps

10 bits

2.92

8 bits

3.50

6 bits

4.38

fTRIG

External trigger frequency

fADC = 35 MHz; 12 bits

2.33

MHz

12 bits

fADC/15

VAIN(2)

Conversion voltage range

VSSA

VREF+

RAIN

External input impedance

kΩ

CADC

Internal sample and hold

capacitor

tSTAB

ADC power-up time

Conversion cycle

tCAL

Calibration time

fADC = 35 MHz

2.35

µs

1/fADC

tLATR

Trigger conversion latency

CKMODE = 00

1/fADC

CKMODE = 01

6.5

1/fPCLK

CKMODE = 10

12.5

CKMODE = 11

3.5

Sampling time

fADC = 35 MHz; VDDA > 2V

0.043

4.59

µs

1.5

160.5

1/fADC

fADC = 35 MHz; VDDA < 2V

0.1

4.59

µs

3.5

160.5

1/fADC

STM32U073x8/B/C

Electrical characteristics

DS14548 - Rev 2

page 88/146

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