Datasheet

189
ATmega8A [DATASHEET]
8159E–AVR–02/2013
Figure 23-8. 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 1.5LSB below maximum). Ideal value: 0LSB
Figure 23-9. 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: 0LSB.
Figure 23-10. Integral Non-linearity (INL)
Output Code
V
REF
Input Voltage
Ideal ADC
Actual ADC
Offset
Error
Output Code
V
REF
Input Voltage
Ideal ADC
Actual ADC
Gain
Error
Output Code
V
REF
Input Voltage
Ideal ADC
Actual ADC
INL