R01DS0140ED0100_FJ4_15 Datasheet, PDF (74/78 Pages) Renesas Technology Corp – 32-bit Single-Chip Microcontroller

Chapter 10
Definition of terms
(4) Zero-scale error
This is the difference between the actually measured value of the analog input
voltage and the theoretical value (1/2 LSB) when the digital output changes
from 0…000 to 0…001.
111
100
Ideal linearity
011
Zero-scale error
010
001
000
AVREFM AVREFM AVREFM AVREFM AVREFM
−x
+x
+2x +3x
Analog input
Note: x: Voltage equivalent to 1 LSB
x = (AVREP − AVREFM) × 1 LSB
Figure 10-3 Zero-scale error
AVREFP
R01DS0140ED0100
74
Data Sheet