Rainbow-electronics ATmega128RFA1 Manual de usuario Pagina 422

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8266A-MCU Wireless-12/09
ATmega128RFA1
Figure 27-12. Offset Error
Output Code
V
REF
Input Voltage
Ideal ADC
Actual ADC
Offset
Error
Gain Error: After adjusting for offset, the Gain Error is found as the deviation of the
last transition (0x3FE to 0x3FF) compared to the ideal transition (at 1.5 LSB below
maximum). Ideal value: 0 LSB.
Figure 27-13. Gain Error
Output Code
V
REF
Input Voltage
Ideal ADC
Actual ADC
Gain
Error
Integral Non-linearity (INL): After adjusting for offset and gain error, the INL is the
maximum deviation of an actual transition compared to an ideal transition for any
code. Ideal value: 0 LSB.
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