Datasheet

 2018 Microchip Technology Inc. Data Sheet Complete DS40002060A-page 100
ATtiny4/5/9/10
Figure 14-12. Differential Non-linearity (DNL)
• Quantization Error: Due to the quantization of the input voltage into a finite number of codes, a range of input voltages (1
LSB wide) will code to the same value. Always ± 0.5 LSB.
• Absolute Accuracy: The maximum deviation of an actual (unadjusted) transition compared to an ideal transition for any
code. This is the compound effect of offset, gain error, differential error, non-linearity, and quantization error. Ideal value:
± 0.5 LSB.
14.11 ADC Conversion Result
After the conversion is complete (ADIF is high), the conversion result can be found in the ADC Data Register (ADCL). For
single ended conversion, the result is
where V
IN
(see Table 14-2 on page 101) is the voltage on the selected input pin and V
CC
is the voltage reference. 0x00
represents analog ground, and 0xFF represents the selected reference voltage minus one LSB.
Output Code
0xFF
0x00
0
V
REF
Input Voltage
DNL
1 LSB
ADCL
V
IN
256
V
CC
-----------------------=