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STM8AF6213 датащи(PDF) 86 Page - STMicroelectronics |
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STM8AF6213 датащи(HTML) 86 Page - STMicroelectronics |
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86 / 106 page ![]() Electrical characteristics STM8AF6213/23/23A/26 86/106 DocID025118 Rev 5 9.3.10 10-bit ADC characteristics Subject to general operating conditions for VDD, fMASTER, and TA unless otherwise specified. Table 54. ADC characteristics Symbol Parameter Conditions Min Typ Max Unit fADC ADC clock frequency VDD = 3 to 5.5 V 1 - 4 MHz VDD = 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 VBGREF Internal bandgap reference voltage VDD = 3 to 5.5 V 1.19(2) 2. Tested in production. 1.22 1.25(2) V CADC Internal sample and hold capacitor -- 3 - pF tS(1) Minimum sampling time fADC = 4MHz - 0.75 - µs fADC = 6 MHz - 0.5 - tSTAB Wakeup time from standby - - 7 - tCONV Minimum total conversion time including sampling time, 10-bit resolution fADC = 4 Hz 3.5 µs fADC = 6 MHz 2.33 -14 1/fADC |
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