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XC2000 Datasheet(PDF) 86 Page - Infineon Technologies AG |
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XC2000 Datasheet(HTML) 86 Page - Infineon Technologies AG |
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86 / 110 page ![]() XC2287 / XC2286 / XC2285 XC2000 Family Derivatives Electrical Parameters Preliminary Data Sheet 84 V0.91, 2007-02 Draft Version 4.3 Analog/Digital Converter Parameters These parameters describe how the optimum ADC performance can be reached. Table 15 A/D Converter Characteristics (Operating Conditions apply) Parameter Symbol Limit Values Unit Test Condition Min. Max. Analog reference supply V AREF SR V AGND + 1.0 V DDPA + 0.05 V 1) 1) TUE is tested at V AREFx = VDDPA, VAGND = 0 V. It is verified by design for all other voltages within the defined voltage range. The specified TUE is valid only, if the absolute sum of input overload currents on Port 5 or Port 15 pins (see I OV specification) does not exceed 10 mA, and if VAREF and VAGND remain stable during the respective period of time. Analog reference ground V AGND SR V SS - 0.05 V AREF - 1.0 V– Analog input voltage range V AIN SR V AGND V AREF V 2) 2) V AIN may exceed VAGND or VAREFx up to the absolute maximum ratings. However, the conversion result in these cases will be X000 H or X3FFH, respectively. Basic clock frequency f ADCI 0.5 16.5 MHz 3) 3) The limit values for f ADCI must not be exceeded when selecting the peripheral frequency and the prescaler setting. Conversion time for 10-bit result 4) t C10 CC (17 + STC) × t ADCI –– Conversion time for 8-bit result 4) t C8 CC (15 + STC) × t ADCI –– Total unadjusted error TUE CC – ±2LSB 1) Total capacitance of an analog input C AINT CC – 15 pF 5) Switched capacitance of an analog input C AINS CC – 7 pF 5) Resistance of the analog input path R AIN CC – 1.5 k Ω 5) Total capacitance of the reference input C AREFT CC – 20 pF 5) Switched capacitance of the reference input C AREFS CC – 20 pF 5) Resistance of the reference input path R AREF CC – 2 k Ω 5) |
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