STM32L475VC datasheet(142/193 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32L475xx

142/193

DocID027692 Rev 2

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

Sym-

bol

Parameter

Conditions(4)

Min Typ Max Unit

Total

unadjusted

error

ADC clock frequency ≤

80 MHz,

Sampling rate ≤ 5.33 Msps,

1.65 V ≤ VDDA = VREF+ ≤

3.6 V,

Voltage scaling Range 1

Single

ended

Fast channel (max speed)

5.5

7.5

LSB

Slow channel (max speed)

4.5

6.5

Differential

Fast channel (max speed)

4.5

7.5

Slow channel (max speed)

4.5

5.5

Offset

error

Single

ended

Fast channel (max speed)

Slow channel (max speed)

2.5

Differential

Fast channel (max speed)

3.5

Slow channel (max speed)

2.5

Gain error

Single

ended

Fast channel (max speed)

4.5

Slow channel (max speed)

3.5

Differential

Fast channel (max speed)

3.5

Slow channel (max speed)

3.5

Differential

linearity

error

Single

ended

Fast channel (max speed)

1.2

1.5

Slow channel (max speed)

1.2

1.5

Differential

Fast channel (max speed)

1.2

Slow channel (max speed)

1.2

Integral

linearity

error

Single

ended

Fast channel (max speed)

3.5

Slow channel (max speed)

2.5

3.5

Differential

Fast channel (max speed)

2.5

Slow channel (max speed)

2.5

ENOB

Effective

number of

bits

Single

ended

Fast channel (max speed)

10 10.4

bits

Slow channel (max speed)

10 10.4

Differential

Fast channel (max speed) 10.6 10.7

Slow channel (max speed) 10.6 10.7

SINAD

Signal-to-

noise and

distortion

ratio

Single

ended

Fast channel (max speed)

Slow channel (max speed)

Differential

Fast channel (max speed)

Slow channel (max speed)

SNR

Signal-to-

noise ratio

Single

ended

Fast channel (max speed)

Slow channel (max speed)

Differential

Fast channel (max speed)

Slow channel (max speed)

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