STM32G030F6 datasheet(42/94 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32G030x6/x8

42/94

DS12991 Rev 1

5.3.4

Embedded voltage reference

The parameters given in Table 24 are derived from tests performed under the ambient

temperature and supply voltage conditions summarized in Table 21: General operating

conditions.

Vhyst_POR_PDR

Hysteresis of VPOR and VPDR

Hysteresis in

continuous mode

-20

Hysteresis in

other mode

-30

1. Continuous mode means Run/Sleep modes, or temperature sensor enable in Low-power run/Low-power sleep modes.

2. Guaranteed by design.

Table 23. Embedded reset and power control block characteristics (continued)

Symbol

Parameter

Conditions(1)

Min

Typ

Max

Unit

Table 24. Embedded internal voltage reference

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VREFINT

Internal reference voltage

-40°C < TJ < 105°C

1.182 1.212

1.232

tS_vrefint (1)

ADC sampling time when reading

the internal reference voltage

-4(2)

µs

tstart_vrefint

Start time of reference voltage

buffer when ADC is enable

12(2)

µs

IDD(VREFINTBUF)

VREFINT buffer consumption from

VDD when converted by ADC

12.5

20(2)

µA

∆VREFINT

Internal reference voltage spread

over the temperature range

VDD = 3 V

7.5(2)

TCoeff_vrefint

Temperature coefficient

50(2)

ppm/°C

ACoeff

Long term stability

1000 hours, T = 25 °C

300

1000(2)

ppm

VDDCoeff

Voltage coefficient

3.0 V < VDD < 3.6 V

250

1200(2)

ppm/V

VREFINT_DIV1

1/4 reference voltage

VREFINT

VREFINT_DIV2

1/2 reference voltage

VREFINT_DIV3

3/4 reference voltage

1. The shortest sampling time can be determined in the application by multiple iterations.

2. Guaranteed by design.

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