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STM32G47PBY3TR Arkusz danych(PDF) 143 Page - STMicroelectronics |
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STM32G47PBY3TR Arkusz danych(HTML) 143 Page - STMicroelectronics |
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143 / 229 page  DS12712 Rev 3 143/229 STM32G473xB STM32G473xC STM32G473xE Electrical characteristics 194 THD Total harmonic distortion Single ADC operation ADC clock frequency ≤ 60 MHz, 1.62 V ≤ VDDA = VREF+ ≤ 3.6 V, Continuous mode, sampling rate: Fast channels@4Msps Slow channels@2Msps Single ended Fast channel (max speed) - -73 -67 dB Slow channel (max speed) - -73 -67 Differential Fast channel (max speed) - -73 -71 Slow channel (max speed) - -73 -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 enabled when VDDA < 2.4 V (BOOSTEN = 1 in the SYSCFG_CFGR1 when VDDA < 2.4 V). It is disabled when VDDA ≥ 2.4 V. No oversampling. Table 65. ADC accuracy - limited test conditions 3(1)(2)(3) (continued) Sym- bol Parameter Conditions(4) Min Typ Max Unit |
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