STM32H723VG datasheet(174/227 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32H723xE/G

174/227

DS13313 Rev 2

6.3.24

Voltage reference buffer characteristics

Table 87. VREFBUF characteristics(1)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VDDA

Analog supply voltage

Normal mode,

VDDA = 3.3 V

VSCALE = 000

2.8

3.3

3.6

VSCALE = 001

2.4

3.6

VSCALE = 010

2.1

3.6

VSCALE = 011

1.8

3.6

Degraded mode(2)

VSCALE = 000

1.62

2.80

VSCALE = 001

1.62

2.40

VSCALE = 010

1.62

2.10

VSCALE = 011

1.62

1.80

VREFBUF

_OUT

Voltage Reference

Buffer Output, at 30 °C,

Iload= 100 µA

Normal mode at 30 °C,

Iload = 100 µA

VSCALE = 000

2.4980 2.5000

2.5035

VSCALE = 001

2.0460 2.0490

2.0520

VSCALE = 010

1.8010 1.8040

1.8060

VSCALE = 011

1.4995 1.5015

1.5040

Degraded mode(2)

VSCALE = 000

VDDA−

150 mV

-VDDA

VSCALE = 001

VDDA−

150 mV

-VDDA

VSCALE = 010

VDDA−

150 mV

-VDDA

VSCALE = 011

VDDA−

150 mV

-VDDA

TRIM

Trim step resolution

±0.05

±0.1

Load capacitor

0.5

1.50

µF

esr

Equivalent Serial

Resistor of CL

Ω

ILOAD

Static load current

Iline_reg

Line regulation

2.8 V ≤ VDDA ≤ 3.6 V

Iload = 500 µA

200

ppm/V

Iload = 4 mA

100

Iload_reg

Load regulation

500 µA ≤ ILOAD ≤ 4 mA

Normal mode

ppm/

Tcoeff

Temperature coefficient

−40 °C < TJ < +130 °C

Tcoeff

VREFINT

+ 100

ppm/

°C

PSRR

Power supply rejection

100KHz

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