HD64F3337YCP16V Datasheet, PDF (381/749 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

to the analog input pins via the input impedance (R_in). The circuit constants should therefore be
selected carefully.
AV_CC
R_in^*2
100 Ω
*1
0.1 µF
Notes: Figures are reference values.
*1
10 µF
0.01 µF
AN₀ to AN₇
AV_SS
*2 R_in: Input impedance
Figure 15.7 Example of Analog Input Pin Protection Circuit
15.6.4 A/D Conversion Accuracy Definitions
A/D conversion accuracy definitions for the H8/3397 Series are given below.
• Resolution
The number of A/D converter digital conversion output codes
• Offset error
The deviation of the analog input voltage value from the ideal A/D conversion characteristic
when the digital output changes from minimum voltage value B'0000000000 (H'000) to
B'0000000001 (H'001) (see figure 15.9).
• Full-scale error
The deviation of the analog input voltage value from the ideal A/D conversion characteristic
when the digital output changes from B'1111111110 (H'3FE) to B'1111111111 (H'3FF) (see
figure 15.9).
• Quantization error
The deviation inherent in the A/D converter, given by 1/2 LSB (see figure 15.8).
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