1 2 3 4 5 6 70
000
001
010
011
100
101
010
111
Digital Output Code
Actual
Transition
Ideal
Transition
At Transition
011/100
(-1/2 LSB)
At Transition
001/010 (-1/4 LSB)
End-Point Lin. Error
Analog Input Value (LSB)
(a) ADC
End-Point Linearity Error of a Linear 3-bit Natural Binary-Coded ADC or DAC
(Offset Error and Gain Error are Adjusted to the Value Zero)
At Step
001 (1/4 LSB)
At Step
011 (1/2 LSB)
End-Point Lin. Error
001 010 011 100 101 010 111000
Digital Input Code
(b) DAC
1
2
3
4
5
6
7
0
Analog Output Value (LSB)
The integral non-linearity depicts a possible distortion of the input-output
transfer characteristic and leads to harmonic distortion.
Analog and Mixed-Signal Center (ESS)
Integral Nonlinearity (INL) Error
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