STM32F479AI datasheet(152/208 Pages) STMICROELECTRONICS

152 / 208 page

Electrical characteristics

STM32F479xx

152/208

DocID028010 Rev 2

CAN (controller area network) interface

Refer to Section 5.3.20 for more details on the input/output alternate function characteristics

(CANx_TX and CANx_RX).

5.3.24

12-bit ADC characteristics

Unless otherwise specified, the parameters given in Table 77 are derived from tests

performed under the ambient temperature, fPCLK2 frequency and VDDA supply voltage

conditions summarized in Table 17.

Table 77. ADC characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VDDA

Power supply

VDDA −VREF+ < 1.2 V

1.7(1)

-3.6

VREF+

Positive reference voltage

1.7(1)

-VDDA

fADC

ADC clock frequency

VDDA = 1.7(1) to 2.4 V

0.6

MHz

VDDA = 2.4 to 3.6 V

0.6

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

Details in Equation 1

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

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