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STM32F107VB データシート(PDF) 70 Page - STMicroelectronics |
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STM32F107VB データシート(HTML) 70 Page - STMicroelectronics |
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70 / 95 page  Electrical characteristics STM32F105xx, STM32F107xx 70/95 Doc ID 15274 Rev 4 Note: ADC accuracy vs. negative injection current: Injecting a negative current on any of the standard (non-robust) 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 currents. Any positive injection current within the limits specified for IINJ(PIN) and UIINJ(PIN) in Section 5.3.12 does not affect the ADC accuracy. Table 53. ADC accuracy - limited test conditions(1) 1. ADC DC accuracy values are measured after internal calibration. Symbol Parameter Test conditions Typ Max(2) 2. Based on characterization, not tested in production. Unit ET Total unadjusted error fPCLK2 = 56 MHz, fADC = 14 MHz, RAIN < 10 kY, VDDA = 3 V to 3.6 V TA = 25 °C Measurements made after ADC calibration ±1.3 ±2 LSB EO Offset error ±1 ±1.5 EG Gain error ±0.5 ±1.5 ED Differential linearity error ±0.7 ±1 EL Integral linearity error ±0.8 ±1.5 Table 54. ADC accuracy(1) (2) 1. ADC DC accuracy values are measured after internal calibration. 2. Better performance could be achieved in restricted VDD, frequency and temperature ranges. Symbol Parameter Test conditions Typ Max(3) 3. Based on characterization, not tested in production. Unit ET Total unadjusted error fPCLK2 = 56 MHz, fADC = 14 MHz, RAIN < 10 kY, VDDA = 2.4 V to 3.6 V Measurements made after ADC calibration ±2 ±5 LSB EO Offset error ±1.5 ±2.5 EG Gain error ±1.5 ±3 ED Differential linearity error ±1 ±2 EL Integral linearity error ±1.5 ±3 |
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