STM32F302RBT7TR 查看數據表（PDF） - STMicroelectronics

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STM32F302RBT7TR

ARM Cortex-M4F 32b MCU+FPU, up to 256KB Flash+48KB SRAM 4 ADCs, 2 DAC ch., 7 comp, 4 PGA, timers, 2.0-3.6 V operation

STMicroelectronics 

STM32F302xx/STM32F303xx

Electrical characteristics

6.3.18

ADC characteristics

Unless otherwise specified, the parameters given in Table 66 to Table 69 are guaranteed by

design, with conditions summarized in Table 22.

Table 66. ADC characteristics

Symbol

Parameter

VDDA

Analog supply voltage for

ADC

fADC ADC clock frequency

fS(1) Sampling rate

fTRIG(1) External trigger frequency

VAIN

RAIN(1)

CADC(1)

Conversion voltage range

External input impedance

Internal sample and hold

capacitor

tCAL(1) Calibration time

tlatr(1)

Trigger conversion latency

Regular and injected

channels without conversion

abort

tlatrinj(1)

Trigger conversion latency

Injected channels aborting a

regular conversion

tS(1) Sampling time

TADCVREG ADC Voltage Regulator

(1)

_STUP

Start-up time

tCONV(1)

Total conversion time

(including sampling time)

1. Data guaranteed by design

Conditions

Resolution = 12 bits,

Fast Channel

Resolution = 10 bits,

Fast Channel

Resolution = 8 bits,

Fast Channel

Resolution = 6 bits,

Fast Channel

fADC = 72 MHz

Resolution = 12 bits

Resolution = 12 bits

fADC = 72 MHz

CKMODE = 00

CKMODE = 01

CKMODE = 10

CKMODE = 11

CKMODE = 00

CKMODE = 01

CKMODE = 10

CKMODE = 11

fADC = 72 MHz

fADC = 72 MHz

Resolution = 12 bits

Resolution = 12 bits

Min

Typ Max Unit

2

-

3.6

V

0.14

-

72

MHz

0.01

-

5.14

0.012

0.014

-

6

MSPS

-

7.2

0.0175

-

9

-

-

-

-

0

-

-

-

-

5

1.5

-

-

-

2.5

-

-

-

0.021

1.5

1.56

112

2

-

-

-

3

-

-

-

-

-

-

-

5.14 MHz

14

VDDA

100

1/fADC

V

kΩ

-

pF

2.5

2

2.25

2.125

3.5

3

3.25

3.125

8.35

601.5

10

µs

1/fADC

1/fADC

1/fADC

1/fADC

1/fADC

1/fADC

1/fADC

1/fADC

1/fADC

µs

1/fADC

µs

0.19

-

3.5

µs

14 to 252 (tS for sampling + 12.5 for

successive approximation)

1/fADC

Doc ID 023353 Rev 5

105/133

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