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STM8S103F2 数据表(PDF) 89 Page - STMicroelectronics |
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STM8S103F2 数据表(HTML) 89 Page - STMicroelectronics |
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89 / 117 page  Unit Max (1) Typ Conditions Parameter Symbol 2.5 1.5 fADC = 4 MHz 3 1.3 fADC = 2 MHz Gain error (2) |EG| 3 2 fADC = 4 MHz 1 0.7 fADC = 2 MHz Differential linearity error (2) |ED| 1.5 0.7 fADC = 4 MHz 1.5 0.6 fADC = 2 MHz Integral linearity error (2) |EL| 2 0.8 fADC = 4 MHz (1) Data based on characterization results, not tested in production. (2) ADC accuracy vs. negative injection current: Injecting negative current on any of the 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 standard analog pins which may potentially inject negative current. Any positive injection current within the limits specified for IINJ(PIN) and ΣIINJ(PIN) in I/O port pin characteristics does not affect the ADC accuracy. Figure 43: ADC accuracy characteristics 1. Example of an actual transfer curve. 2. The ideal transfer curve 89/117 DocID15441 Rev 9 Electrical characteristics STM8S103K3 STM8S103F3 STM8S103F2 |
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