參數(shù)資料
型號(hào)： STM32F103R8T7TR
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 32-BIT, FLASH, 1.25 MHz, RISC MICROCONTROLLER, PQFP64
封裝： 10 X 10 MM, ROHS COMPLIANT, QFP-64
文件頁數(shù)： 65/92頁
文件大?。?/td> 1212K
代理商： STM32F103R8T7TR
Electrical characteristics
STM32F103x8, STM32F103xB
Doc ID 13587 Rev 11
5.3.17
12-bit ADC characteristics
Unless otherwise specified, the parameters given in Table 45 are derived from tests
performed under the ambient temperature, fPCLK2 frequency and VDDA supply voltage
conditions summarized in Table 9.
Note:
It is recommended to perform a calibration after each power-up.
Table 45.
ADC characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VDDA
Power supply
2.4
3.6
V
VREF+
Positive reference voltage
2.4
VDDA
V
IVREF
Current on the VREF input pin
160(1)
A
fADC
ADC clock frequency
0.6
14
MHz
fS
(2)
Sampling rate
0.05
1
MHz
fTRIG
External trigger frequency
fADC = 14 MHz
823
kHz
17
1/fADC
VAIN
(3)
Conversion voltage range
0 (VSSA or VREF-
tied to ground)
VREF+
V
RAIN
External input impedance
Table 46 for details
50
k
Sampling switch resistance
1
k
Internal sample and hold
capacitor
8pF
Calibration time
fADC = 14 MHz
5.9
s
83
1/fADC
tlat
Injection trigger conversion
latency
fADC = 14 MHz
0.214
s
3(4)
1/fADC
tlatr
Regular trigger conversion
latency
fADC = 14 MHz
0.143
s
1/fADC
tS
Sampling time
fADC = 14 MHz
0.107
17.1
s
1.5
239.5
1/fADC
tSTAB
Power-up time
0
1
s
tCONV
Total conversion time
(including sampling time)
fADC = 14 MHz
1
18
s
14 to 252 (tS for sampling +12.5 for
successive approximation)
1/fADC
1.
Based on characterization, not tested in production.
2.
Guaranteed by design, not tested in production.
3.
In devices delivered in VFQFPN and LQFP packages, VREF+ is internally connected to VDDA and VREF- is internally
connected to VSSA. Devices that come in the TFBGA64 package have a VREF+ pin but no VREF- pin (VREF- is internally
connected to VSSA), see Table 5 and Figure 6.
4.
For external triggers, a delay of 1/fPCLK2 must be added to the latency specified in Table 45.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
STM32F103R8T7XXX 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Medium-density performance line ARM-based 32-bit MCU with 64 or 128 KB Flash, USB, CAN, 7 timers, 2 ADCs, 9 communication interfaces
STM32F103R8U6TR 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Medium-density performance line ARM-based 32-bit MCU with 64 or 128 KB Flash, USB, CAN, 7 timers, 2 ADCs, 9 communication interfaces
STM32F103R8U6XXX 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Medium-density performance line ARM-based 32-bit MCU with 64 or 128 KB Flash, USB, CAN, 7 timers, 2 ADCs, 9 communication interfaces
STM32F103R8U7TR 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Medium-density performance line ARM-based 32-bit MCU with 64 or 128 KB Flash, USB, CAN, 7 timers, 2 ADCs, 9 communication interfaces
STM32F103R8U7XXX 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Medium-density performance line ARM-based 32-bit MCU with 64 or 128 KB Flash, USB, CAN, 7 timers, 2 ADCs, 9 communication interfaces
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