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STM8S003F3 Datasheet(PDF) 82 Page - STMicroelectronics |
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STM8S003F3 Datasheet(HTML) 82 Page - STMicroelectronics |
82 / 104 page ![]() Electrical characteristics STM8S003F3 STM8S003K3 82/104 DocID018576 Rev 9 9.3.10 10-bit ADC characteristics Subject to general operating conditions for VDDA, fMASTER, and TA unless otherwise specified. Table 45. ADC characteristics Symbol Parameter Conditions Min Typ Max Unit fADC ADC clock frequency VDDA = 3 to 5.5 V 1 - 4 MHz VDDA = 4.5 to 5.5 V 1 - 6 VAIN Conversion voltage range(1) 1. During the sample time the input capacitance CAIN (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. -VSS -VDD V CADC Internal sample and hold capacitor -- 3 - pF tS(1) Sampling time fADC = 4 MHz - 0.75 - µs fADC = 6 MHz - 0.5 - tSTAB Wakeup time from standby - - 7 - µs tCONV Total conversion time (including sampling time, 10-bit resolution) fADC = 4 MHz 3.5 µs fADC = 6 MHz 2.33 µs -14 1/fADC Table 46. ADC accuracy with RAIN < 10 kΩ , VDD = 5 V Symbol Parameter Conditions Typ Max(1) Unit |ET| Total unadjusted error (2) fADC = 2 MHz 1.6 3.5 LSB fADC = 4 MHz 2.2 4 fADC = 6 MHz 2.4 4.5 |EO| Offset error (2) fADC = 2 MHz 1.1 2.5 fADC = 4 MHz 1.5 3 fADC = 6 MHz 1.8 3 |EG| Gain error (2) fADC = 2 MHz 1.5 3 fADC = 4 MHz 2.1 3 fADC = 6 MHz 2.2 4 |ED| Differential linearity error (2) fADC = 2 MHz 0.7 1.5 fADC = 4 MHz 0.7 1.5 fADC = 6 MHz 0.7 1.5 |EL| Integral linearity error (2) fADC = 2 MHz 0.6 1.5 fADC = 4 MHz 0.8 2 fADC = 6 MHz 0.8 2 |
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