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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ST7-STICK45 датащи(PDF) 106 Page - STMicroelectronics |
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ST7-STICK45 датащи(HTML) 106 Page - STMicroelectronics |
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106 / 124 page  ST7LITE0xY0, ST7LITESxY0 106/124 ADC CHARACTERISTICS (Cont’d) ADC Accuracy with VDD=5.0V TA = -40°C to 85°C, unless otherwise specified Notes: 1. Data based on characterization results over the whole temperature range, monitored in production. 2. Injecting negative current on any of the analog input pins significantly reduces the accuracy of any conversion being performed on any analog input. Analog pins can be protected against negative injection by adding a Schottky diode (pin to ground). Injecting negative current on digital input pins degrades ADC accuracy especially if performed on a pin close to the analog input pins. Any positive injection current within the limits specified for IINJ(PIN) and ΣIINJ(PIN) in Section 13.8 does not affect the ADC accuracy. – Symbol Parameter Conditions Typ Max Unit ET Total unadjusted error 2) fCPU=4MHz, fADC=2MHz ,VDD=5.0V ±1 LSB EO Offset error 2) -0.5 / +1 EG Gain Error 2) ±1 ED Differential linearity error 2) ±11) EL Integral linearity error 2) ±11) ET Total unadjusted error 2) fCPU=8MHz, fADC=4MHz ,VDD=5.0V ±2 LSB EO Offset error 2) -0.5 / 3.5 EG Gain Error 2) -2 / 0 ED Differential linearity error 2) ±11) EL Integral linearity error 2) ±11) |
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