STM32G474PBY3XXX datasheet(144/236 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32G474xB STM32G474xC STM32G474xE

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DS12288 Rev 5

Table 68. ADC accuracy - limited test conditions 1(1)(2)(3)

Symbol Parameter

Conditions(4)

Min Typ Max Unit

Total

unadjusted

error

Single ADC operation ADC clock

frequency ≤ 60 MHz,

VDDA = VREF+ = 3 V, TA =

25 °C

Continuous mode, sampling

rate:

Fast channels@4Msps

Slow channels@2Msps

Single

ended

Fast channel (max speed)

5.9

6.9

LSB

Slow channel (max speed)

5.5

6.9

Differential

Fast channel (max speed)

4.6

5.6

Slow channel (max speed)

5.6

Offset error

Single

ended

Fast channel (max speed)

2.5

Slow channel (max speed)

1.9

Differential

Fast channel (max speed)

1.8

2.8

Slow channel (max speed)

1.1

2.8

Gain error

Single

ended

Fast channel (max speed)

4.6

6.6

Slow channel (max speed)

4.5

6.6

Differential

Fast channel (max speed)

3.6

4.6

Slow channel (max speed)

3.3

4.6

Differential

linearity

error

Single

ended

Fast channel (max speed)

1.1

1.9

Slow channel (max speed)

1.3

1.9

Differential

Fast channel (max speed)

1.3

1.6

Slow channel (max speed)

1.4

1.6

Integral

linearity

error

Single

ended

Fast channel (max speed)

2.3

3.4

Slow channel (max speed)

2.4

3.4

Differential

Fast channel (max speed)

2.1

3.2

Slow channel (max speed)

2.2

3.2

ENOB

Effective

number of

bits

Single

ended

Fast channel (max speed) 10.4 10.6

bits

Slow channel (max speed) 10.4 10.6

Differential

Fast channel (max speed) 10.8 10.9

Slow channel (max speed) 10.8 10.9

SINAD

Signal-to-

noise and

distortion

ratio

Single

ended

Fast channel (max speed) 64.4 65.6

Slow channel (max speed) 64.4 65.6

Differential

Fast channel (max speed) 66.8 67.5

Slow channel (max speed) 66.8 67.5

SNR

Signal-to-

noise ratio

Single

ended

Fast channel (max speed)

66.9

Slow channel (max speed)

66.9

Differential

Fast channel (max speed)

Slow channel (max speed)

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