UPD78F0988AGC-8BS Renesas Electronics America, UPD78F0988AGC-8BS Datasheet - Page 222

• Manufacturer Part Number: UPD78F0988AGC-8BS
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0988AGC-8BS

• Lead Free Status / Rohs Status: Supplier Unconfirmed

220
1 ...... 1
0 ...... 0
(4) Zero-scale error
(5) Full-scale error
(6) Integral linearity error
(7) Differential linearity error
This is the difference between the actually measured value and the theoretical value (1/2 LSB) of an analog
input voltage when the digital output changes from 0...000 to 0...001. If the measured value is greater than
the theoretical value, it is the difference between the actually measured value and the theoretical value (3/
2 LSB) of the analog input voltage when the digital output changes from 0...001 to 0...010.
This is the difference between the actually measured value and the theoretical value (full scale -3/2 LSB) of
an analog input voltage when the digital output changes from 1...110 to 1...111.
This is the degree to which the conversion characteristics shift from the ideal straight line. It indicates the
maximum difference between the measured value and the ideal straight line where the zero-scale error and
full-scale error are 0.
This is the difference between the actually measured value and the theoretical value of an input voltage when
the conversion result changes from a certain value by 1. The differential linearity error indicates the degree
of dispersion (relative drift) of input voltage variation required when changing from each conversion value in
comparison to the integral linearity error that indicates the absolute value of the drift from the theoretical value.
0
Ideal straight
Figure 11-17. Overall Error
line
Analog input
Overall error
CHAPTER 11 A/D CONVERTER
User’s Manual U13029EJ7V1UD
AV
REF
1 ...... 1
0 ...... 0
Figure 11-18. Quantization Error
0
1/2LSB
Analog input
1/2LSB
Quantization error
AV
REF