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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32F303VB датащи(PDF) 111 Page - STMicroelectronics |
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STM32F303VB датащи(HTML) 111 Page - STMicroelectronics |
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111 / 148 page  DocID023353 Rev 13 111/148 STM32F303xB STM32F303xC Electrical characteristics 124 SINAD (5) Signal-to- noise and distortion ratio ADC clock freq. ≤ 72 MHz, Sampling freq. ≤ 5 Msps, 2 V ≤ VDDA, VREF+ ≤ 3.6 V 100-pin package Single Ended Fast channel 5.1 Ms 64 - dB Slow channel 4.8 Ms 63 - Differential Fast channel 5.1 Ms 67 - Slow channel 4.8 Ms 67 - SNR(5) Signal-to- noise ratio Single Ended Fast channel 5.1 Ms 64 - Slow channel 4.8 Ms 64 - Differential Fast channel 5.1 Ms 67 - Slow channel 4.8 Ms 67 - THD(5) Total harmonic distortion Single Ended Fast channel 5.1 Ms - -74 Slow channel 4.8 Ms - -74 Differential Fast channel 5.1 Ms - -78 Slow channel 4.8 Ms - -76 1. ADC DC accuracy values are measured after internal calibration. 2. 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. Any positive injection current within the limits specified for IINJ(PIN) and ΣIINJ(PIN) in Section 6.3.14 does not affect the ADC accuracy. 3. Better performance may be achieved in restricted VDDA, frequency and temperature ranges. 4. Guaranteed by characterization results. 5. Value measured with a -0.5 dB full scale 50 kHz sine wave input signal. Table 71. ADC accuracy, 100-pin packages(1)(2)(3) (continued) Symbol Parameter Conditions Min (4) Max(4) Unit |
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