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STM32WBA62CGF6 Datasheet(PDF) 147 Page - STMicroelectronics |
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STM32WBA62CGF6 Datasheet(HTML) 147 Page - STMicroelectronics |
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147 / 185 page ![]() DS14736 Rev 1 147/185 STM32WBA6xxx Electrical characteristics 169 5.3.22 12-bit Analog-to-Digital converter (ADC4) characteristics Unless otherwise specified, the parameters given in the following tables are derived at ambient temperature, and under the fHCLK frequency and supply voltage conditions summarized in Table 30. Note: It is recommended to perform a calibration after each power-up. Table 83. 12-bit ADC4 characteristics (1)(2) Symbol Parameter Conditions Min Typ Max Unit VDDA Analog supply voltage - 1.62 - 3.6 V VREF+ Positive reference voltage - 1.0 - VDDA fADC ADC clock frequency - 0.14 - 55 MHz DuCyADC ADC clock duty cycle - 45 - 55 % fs Sampling rate Resolution 12 bits 0.010 - 2.75 Msps Resolution 10 bits 0.012 - 3.05 Resolution 8 bits 0.014 - 3.43 Resolution 6 bits 0.0175 - 3.92 tTRIG External trigger period Resolution 12 bits 16 - - 1/fADC VAIN(3) Conversion voltage range - 0 - VREF+ V RAIN(4) External input impedance Resolution 12 bits, Tj = 130 °C - - 2.2 kΩ Resolution 10 bits, Tj = 130 °C - - 6.8 Resolution 8 bits, Tj = 130 °C - - 33.0 Resolution 6 bits, Tj = 130 °C - - 47.0 CADC Internal sample and hold capacitor -- 5 - pF tADCVREG_STUP ADC voltage regulator startup time -- - 25 µs tSTAB ADC power-up time - (3 x 1/fADC) + 1 conversion cycle |
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