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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32L462CEU6 датащи(PDF) 141 Page - STMicroelectronics |
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STM32L462CEU6 датащи(HTML) 141 Page - STMicroelectronics |
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141 / 198 page  DocID029969 Rev 1 141/198 STM32L462CE STM32L462RE STM32L462VE Electrical characteristics 174 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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