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STM8S003K3 датащи(PDF) 82 Page - STMicroelectronics |
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STM8S003K3 датащи(HTML) 82 Page - STMicroelectronics |
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82 / 100 page ![]() Table 44: ADC characteristics Unit Max Typ Min Conditions Parameter Symbol MHz 4 1 VDD =2.95 to 5.5 V ADC clock frequency fADC 6 1 VDD =4.5 to 5.5 V V VDD VSS Conversion voltage range (1) VAIN pF 3 Internal sample and hold capacitor CADC μs 0.75 fADC = 4 MHz Minimum sampling time tS (1) 0.5 fADC = 6 MHz μs 7 Wake-up time from standby tSTAB μs 3.5 fADC = 4 MHz Minimum total conversion time (including sampling time, 10-bit resolution) tCONV μs 2.33 fADC = 6 MHz 1/fADC 14 (1) During the sample time the input capacitance C AIN (3 pF max) can be charged/discharged by the external source. The internal resistance of the analog source must allow the capacitance to reach its final voltage level within tS. After the end of the sample time tS, changes of the analog input voltage have no effect on the conversion result. Values for the sample clock tS depend on programming. Table 45: ADC accuracy with RAIN < 10 kΩ , VDD= 5 V Unit Max (1) Typ Conditions Parameter Symbol LSB 3.5 1.6 fADC = 2 MHz Total unadjusted error (2) |ET| 4 2.2 fADC = 4 MHz 4.5 2.4 fADC = 6 MHz 2.5 1.1 fADC = 2 MHz Offset error (2) |EO| DocID018576 Rev 3 82/100 STM8S003K3 STM8S003F3 Electrical characteristics |
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