Intel 8253 - Page 225

Differential Nonlinearity (DNL)
Digital
Output
Code
0…110
0 1 2 3 4 5
Differential
Linearity Error
(1/2 LSB)
1 LSB
1 LSB
Differential
Linearity Error
(-1/2 LSB)
Analog Input Value (LSB)
(a) ADC
0…101
0…100
0…011
0…010
0…001
0…000
0…101
0…100
0…011
0…010
0…001
0…000
1 LSB
Differential
Linearity Error
(-1/4 LSB)
1 LSB
Differential Linearity
Error (+1/4 LSB)
6
5
4
3
2
1
0
Analog Output
Value (LSB)
Digital Input Code
(b) DAC
Differential Linearity Error of a Linear ADC or DAC
VLSI Analog Microelectronics (ESS)