STM32H523CEU6 datasheet(167/228 Pages) STMICROELECTRONICS

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DS14540 Rev 1

167/228

STM32H523xx

Electrical characteristics

197

5.3.22

12-bit ADC characteristics

Unless otherwise specified, the parameters given in Table 89 are derived from tests

performed under the ambient temperature, fHCLK frequency and VDDA supply voltage

conditions summarized in Table 19.

Table 89. 12-bit ADC characteristics(1)(2)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VDDA

Analog

supply

voltage for

ADC ON

-1.62

3.6

VREF+

Positive

reference

voltage

1.62

VDDA

VREF-

Negative

reference

voltage

VSSA

fADC

ADC clock

frequency

1.62V ≤ VDDA ≤ 3.6 V

1.5

MHz

fS(3) with

RAIN = 47 Ω

and

CPCB = 22 pF

Sampling

rate for fast

channels

(VIN[0:5])

Resolution

= 12 bits

Continuous

mode

1.8V ≤ VDDA≤3.6V

-40°C ≤ TJ ≤ 130°C

fADC=

75 MHz

SMP

=2.5

-5.00

MSPS

1.6V ≤ VDDA≤3.6V

fADC=

70 MHz

4.66

Single or

Discontinuous

mode

2.4V ≤ VDDA≤3.6V

fADC=

60 MHz

4.00

1.6V ≤ VDDA≤3.6V

fADC=

50MHz

3.33

Resolution

= 10 bits

Continuous

mode

1.6V ≤ VDDA≤3.6V

-40°C ≤ TJ ≤ 130°C

fADC=

75 MHz

SMP

=2.5

5.77

Single or

Discontinuous

mode

2.4V ≤ VDDA≤3.6V

fADC=

75 MHz

5.77

1.6V ≤ VDDA≤3.6V

fADC=

65 MHz

5.00

Resolution

= 8 bits

All modes

1.6V ≤ VDDA≤3.6V -40°C ≤ TJ ≤ 130°C

fADC=

75 MHz

SMP

=2.5

6.82

Resolution

= 6 bits

All modes

1.6V ≤ VDDA≤3.6V -40°C ≤ TJ ≤ 130°C

fADC=

75 MHz

8.33

Sampling

rate for slow

channels

Resolution

= 12 bits

All modes(4)

1.6V ≤ VDDA≤3.6V -40°C ≤ TJ ≤ 130°C

fADC=

35 MHz

SMP

=2.5

2.30

Resolution

= 10 bits

fADC=

35 MHz

2.70

Resolution

= 8 bits

fADC=

50 MHz

4.50

Resolution

= 6 bits

fADC=

50 MHz

5.50

tTRIG

External

trigger period

Resolution = 12 bits

1/fADC

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