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STM32L452VCU6TR Folha de dados(PDF) 157 Page - STMicroelectronics

Nome de Peças STM32L452VCU6TR
Descrição Electrónicos  Ultra-low-power ARM® Cortex®-M4 32-bit MCUFPU, 100DMIPS, up to 512KB Flash, 160KB SRAM, analog, audio, ext. SMPS
PDF  210 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
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STM32L452VCU6TR Folha de dados(HTML) 157 Page - STMicroelectronics

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STM32L452xx
Electrical characteristics
186
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 80. ADC accuracy - limited test conditions 3(1)(2)(3) (continued)
Sym-
bol
Parameter
Conditions(4)
Min Typ Max Unit



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