STM32H750VB datasheet(281/337 Pages) STMICROELECTRONICS

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DS12556 Rev 6

281/336

STM32H750VB STM32H750ZB STM32H750IB STM32H750XB

Electrical characteristics (rev V)

311

7.3.22

Voltage reference buffer characteristics

Table 187. VREFBUF characteristics(1)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VDDA

Analog supply voltage

Normal mode

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

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

VSCALE = 000

2.498

2.5

2.5035

VSCALE = 001

2.046

2.049

2.052

VSCALE = 010

1.801

1.804

1.806

VSCALE = 011

1.4995 1.5015

1.504

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

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 < +125 °C

Tcoeff

VREFINT

+ 100

ppm/

°C

PSRR

Power supply rejection

100KHz

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