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STM32L4P5CEI3 bảng dữ liệu(PDF) 218 Page - STMicroelectronics

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STM32L4P5CEI3 bảng dữ liệu(HTML) 218 Page - STMicroelectronics

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Electrical characteristics
STM32L4P5xx
218/311
DS12903 Rev 2
THD
Total
harmonic
distortion
ADC clock frequency ≤
80 MHz,
Sampling rate ≤ 5.33 Msps,
1.65 V ≤ VDDA = VREF+ ≤
3.6 V,
Voltage scaling Range 1
Single
ended
Fast channel (max speed)
-
-69
-67
dB
Slow channel (max speed)
-
-71
-67
Differential
Fast channel (max speed)
-
-72
-71
Slow channel (max speed)
-
-72
-71
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 81. ADC accuracy - limited test conditions 3(1)(2)(3) (continued)
Sym-
bol
Parameter
Conditions(4)
Min Typ Max Unit



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