STM32F050G4U7 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

生产厂家

STM32F050G4U7

Low- and medium-density advanced ARM™-based 32-bit MCU with up to 32 Kbytes Flash, timers, ADC and comm. interfaces

STMicroelectronics 

Electrical characteristics

STM32F050xx

6.3.15

Note:

12-bit ADC characteristics

Unless otherwise specified, the parameters given in Table 49 are preliminary values derived

from tests performed under ambient temperature, fPCLK2 frequency and VDDA supply voltage

conditions summarized in Table 15: General operating conditions.

It is recommended to perform a calibration after each power-up.

Table 49. ADC characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VDDA

fADC

fS(1)

Analog supply voltage for

ADC ON

ADC clock frequency

Sampling rate

fTRIG(1) External trigger frequency

fADC = 14 MHz

VAIN Conversion voltage range

RAIN(1) External input impedance

RADC(1)

CADC(1)

Sampling switch resistance

Internal sample and hold

capacitor

tCAL(1) Calibration time

See Equation 1 and

Table 50 for details

fADC = 14 MHz

tlatr(1) Trigger conversion latency

JitterADC

ADC jitter on trigger

conversion

fADC = fPCLK/2 = 14 MHz

fADC = fPCLK/2

fADC = fPCLK/4 = 12 MHz

fADC = fPCLK/4

fADC = fHSI14 = 14 MHz

fADC = fHSI14

2.4

-

0.6

-

0.05

-

-

-

-

-

0

-

-

-

-

-

-

-

0.188

5.9

83

0.196

5.5

0.219

10.5

-

-

1

3.6

14

1

823

17

VDDA

50

V

MHz

MHz

kHz

1/fADC

V

kΩ

1

kΩ

8

0.259

-

pF

µs

1/fADC

µs

1/fPCLK

µs

1/fPCLK

µs

1/fHSI14

tS(1)

tSTAB(1)

Sampling time

Power-up time

tCONV(1)

Total conversion time

(including sampling time)

fADC = 14 MHz

fADC = 14 MHz

0.107

-

17.1

µs

1.5

-

239.5 1/fADC

0

0

1

µs

1

18

µs

14 to 252 (tS for sampling +12.5 for

successive approximation)

1/fADC

1. Guaranteed by design, not tested in production.

72/97

Doc ID 023683 Rev 1

Share Link: