STM32F769AI datasheet(170/255 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32F765xx STM32F767xx STM32F768Ax STM32F769xx

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DocID029041 Rev 4

fTRIG(2) External trigger frequency

fADC = 30 MHz,

12-bit resolution

1764

kHz

1/fADC

VAIN

Conversion voltage range(3)

(VSSA or VREF-

tied to ground)

-VREF+

RAIN(2)

External input impedance

See Equation 1 for

details

RADC(2)(4) Sampling switch resistance

CADC(2)

Internal sample and hold

capacitor

tlat(2)

Injection trigger conversion

latency

fADC = 30 MHz

0.100

μs

3(5)

1/fADC

tlatr(2)

Regular trigger conversion

latency

fADC = 30 MHz

0.067

μs

2(5)

1/fADC

tS(2)

Sampling time

fADC = 30 MHz

0.100

μs

480

1/fADC

tSTAB(2) Power-up time

μs

tCONV(2)

Total conversion time (including

sampling time)

fADC = 30 MHz

12-bit resolution

0.50

16.40

μs

fADC = 30 MHz

10-bit resolution

0.43

16.34

μs

fADC = 30 MHz

8-bit resolution

0.37

16.27

μs

fADC = 30 MHz

6-bit resolution

0.30

16.20

μs

9 to 492 (tS for sampling +n-bit resolution for successive

approximation)

1/fADC

fS(2)

Sampling rate

(fADC = 36 MHz, and

tS = 3 ADC cycles)

12-bit resolution

Single ADC

2.4

Msps

12-bit resolution

Interleave Dual ADC

mode

4.5

Msps

12-bit resolution

Interleave Triple ADC

mode

7.2

Msps

Table 71. ADC characteristics (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

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