STM32F205RF View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STM32F205RF

ARM-based 32-bit MCU, 150DMIPs, up to 1 MB Flash/128+4KB RAM, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 15 comm. interfaces & camera

STMicroelectronics 

STM32F20xxx

Electrical characteristics

5.3.20

12-bit ADC characteristics

Unless otherwise specified, the parameters given in Table 64 are derived from tests

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

conditions summarized in Table 12.

Table 64. ADC characteristics

Symbol

Parameter

Conditions

Min

Typ Max

VDDA Power supply

VREF+ Positive reference voltage

fADC ADC clock frequency

fTRIG(3) External trigger frequency

VDDA = 1.8(1) to 2.4 V

VDDA = 2.4 to 3.6 V

fADC = 30 MHz with

12-bit resolution

1.8(1)

1.8(1)(2)

0.6

0.6

-

-

-

3.6

-

VDDA

-

15

-

30

-

1764

-

17

VAIN Conversion voltage range(4)

0 (VSSA or VREF-

tied to ground)

-

VREF+

RAIN(3) External input impedance

See Equation 1 for

details

-

RADC(3)(5) Sampling switch resistance

1.5

CADC(3)

Internal sample and hold

capacitor

-

-

50

-

6

4

-

tlat(3)

Injection trigger conversion

latency

fADC = 30 MHz

-

-

-

0.100

-

3(6)

tlatr(3) Regular trigger conversion latency

fADC = 30 MHz

-

-

-

0.067

-

2(6)

tS(3) Sampling time

tSTAB(3) Power-up time

fADC = 30 MHz

fADC = 30 MHz

12-bit resolution

0.100

3

-

0.5

-

16

-

480

2

3

-

16.40

fADC = 30 MHz

0.43

10-bit resolution

-

16.34

tCONV(3)

Total conversion time (including

sampling time)

fADC = 30 MHz

8-bit resolution

0.37

-

16.27

fADC = 30 MHz

0.3

-

16.20

6-bit resolution

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

approximation)

Unit

V

V

MHz

MHz

kHz

1/fADC

V

kΩ

kΩ

pF

µs

1/fADC

µs

1/fADC

µs

1/fADC

µs

µs

µs

µs

µs

1/fADC

Doc ID 15818 Rev 9

115/177

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