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ST7FOXK2 датащи(PDF) 210 Page - STMicroelectronics |
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ST7FOXK2 датащи(HTML) 210 Page - STMicroelectronics |
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210 / 226 page ![]() Electrical characteristics ST7FOXF1, ST7FOXK1, ST7FOXK2 210/226 Figure 92. ADC accuracy characteristics Table 91. ADC accuracy with VDD = 4.5 to 5.5 V Symbol (1) 1. Data based on characterization results over the whole temperature range. Parameter Conditions Typ Max Unit |ET| Total unadjusted error fCPU=8 MHz, fADC=4 MHz (1) 2.0 5.0 LSB |EO| Offset error 0.9 2.5 |EG| Gain Error 1.0 1.5 |ED| Differential linearity error 1.2 3.5 |EL| Integral linearity error 1.1 4.5 EO EG 1LSBIDEAL 1LSBIDEAL VDD VSS – 1024 -------------------------------- = Vin (LSBIDEAL) (1) Example of an actual transfer curve (2) The ideal transfer curve (3) End point correlation line ET=Total Unadjusted Error: maximum deviation between the actual and the ideal transfer curves. EO=Offset Error: deviation between the first actual transition and the first ideal one. EG=Gain Error: deviation between the last ideal transition and the last actual one. ED=Differential Linearity Error: maximum deviation between actual steps and the ideal one. EL=Integral Linearity Error: maximum deviation between any actual transition and the end point correlation line. Digital Result 1023 1022 1021 5 4 3 2 1 0 7 6 1 2 34 56 7 1021 1022 1023 1024 (1) (2) ET ED EL (3) VDD VSS |
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