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STM32L476ME bảng dữ liệu(PDF) 155 Page - STMicroelectronics

tên linh kiện STM32L476ME
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, LCD, analog, audio
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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STM32L476ME bảng dữ liệu(HTML) 155 Page - STMicroelectronics

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STM32L476xx
Electrical characteristics
207
THD
Total
harmonic
distortion
ADC clock frequency ≤
80 MHz,
Sampling rate ≤ 5.33 Msps,
VDDA = VREF+ = 3 V,
TA = 25 °C
Single
ended
Fast channel (max speed)
-
-74
-73
dB
Slow channel (max speed)
-
-74
-73
Differential
Fast channel (max speed)
-
-79
-76
Slow channel (max speed)
-
-79
-76
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 65. ADC accuracy - limited test conditions 1(1)(2)(3) (continued)
Sym-
bol
Parameter
Conditions(4)
Min Typ Max Unit



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