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STM32L475VC bảng dữ liệu(PDF) 145 Page - STMicroelectronics

tên linh kiện STM32L475VC
Giải thích chi tiết về linh kiện  Ultra-low-power ARM Cortex-M4 32-bit MCUFPU, 100DMIPS, up to 1MB Flash, 128 KB SRAM, USB OTG FS, analog, audio
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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STM32L475VC bảng dữ liệu(HTML) 145 Page - STMicroelectronics

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STM32L475xx
Electrical characteristics
181
THD
Total
harmonic
distortion
ADC clock frequency ≤
26 MHz,
1.65 V ≤ VDDA = VREF+ ≤
3.6 V,
Voltage scaling Range 2
Single
ended
Fast channel (max speed)
-
-71
-69
dB
Slow channel (max speed)
-
-71
-69
Differential
Fast channel (max speed)
-
-73
-72
Slow channel (max speed)
-
-73
-72
1. Guaranteed by design.
2. ADC DC accuracy values are measured after internal calibration.
3. ADC accuracy vs. negative Injection Current: Injecting negative current on any analog input pins should be avoided as this
significantly reduces the accuracy of the conversion being performed on another analog input. It is recommended to add a
Schottky diode (pin to ground) to analog pins which may potentially inject negative current.
4. The I/O analog switch voltage booster is enable when VDDA < 2.4 V (BOOSTEN = 1 in the SYSCFG_CFGR1 when
VDDA < 2.4 V). It is disable when VDDA ≥ 2.4 V. No oversampling.
Table 69. ADC accuracy - limited test conditions 4(1)(2)(3) (continued)
Sym-
bol
Parameter
Conditions(4)
Min Typ Max Unit



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