AT89C5132
23.3.7.3
Waveforms
Figure 23-19. Analog-to-Digital Converter Internal Waveforms
CLK
TCLCL
ADEN Bit
TEHSH
ADSST Bit
TSHSL
Figure 23-20. Analog-to-Digital Converter Characteristics
Offset Gain
Error Error
OSe Ge
Code Out
1023
1022
1021
1020
1019
1018
Ideal Transfer Curve
7
6
5
Example of an Actual Transfer Curve
Center of a Step
4
3
2
1
Integral Non-linearity (ILe)
Differential Non-linearity (DLe)
1 LSB
(Ideal)
0
0
AVIN (LSBideal)
1
2
3
4
5
6
7
1018 1019 1020 1021 1022 1023 1024
Offset
Error
OSe
171
4173E–USB–09/07