STM32F398VE datasheet(128/151 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F398VE

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DocID027227 Rev 2

fS(1)

Sampling rate

Resolution = 12 bits,

Fast Channel

0.01

5.14

MSPS

Resolution = 10 bits,

Fast Channel

0.012

Resolution = 8 bits,

Fast Channel

0.014

7.2

Resolution = 6 bits,

Fast Channel

0.0175

fTRIG(1)

External trigger frequency

fADC = 72 MHz

Resolution = 12 bits

5.14

MHz

Resolution = 12 bits

1/fADC

VAIN

Conversion voltage range(2)

-0

VREF+

RAIN(1)

External input impedance

100



CADC(1)

Internal sample and hold

capacitor

tSTAB(1)

Power-up time

µs

tCAL(1)

Calibration time

fADC = 72 MHz

1.56

µs

112

1/fADC

tlatr(1)

Trigger conversion latency



Regular and injected

channels without conversion

abort

CKMODE = 00

1.5

2.5

1/fADC

CKMODE = 01

1/fADC

CKMODE = 10

2.25

1/fADC

CKMODE = 11

2.125

1/fADC

tlatrinj(1)

Trigger conversion latency



Injected channels aborting a

regular conversion

CKMODE = 00

2.5

3.5

1/fADC

CKMODE = 01

1/fADC

CKMODE = 10

3.25

1/fADC

CKMODE = 11

3.125

1/fADC

tS(1)

Sampling time

fADC = 72 MHz

0.021

8.35

µs

1.5

601.5

1/fADC

TADCVREG

_STUP

(1)

ADC Voltage Regulator

Start-up time

µs

tCONV(1)

Total conversion time

(including sampling time)

fADC = 72 MHz

Resolution = 12 bits

0.19

8.52

µs

Resolution = 12 bits

14 to 614 (tS for sampling + 12.5

for

successive approximation)

1/fADC

1. Data guaranteed by design, not tested in Production.

2. VREF+ can be internally connected to VDDA and VREF- can be internally connected to VSSA, depending on the package.

Refer to Section 4: Pinouts and pin description for further details.

Table 73. ADC characteristics (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

STM32F398VE Datasheet(PDF) 128 Page - STMicroelectronics

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