h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 751

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

A/D Conversion Precision Definitions: The chip’s A/D conversion precision definitions are
given below.
Resolution
The number of A/D converter digital 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 the minimum voltage value B'0000000000 (H'00) to
B'0000000001 (H'01) (see figure 17-10).
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'3E) to B'1111111111 (H'3F) (see
figure 17-10).
Quantization error
The deviation inherent in the A/D converter, given by 1/2 LSB (see figure 17-9).
Nonlinearity error
The error with respect to the ideal A/D conversion characteristic between the zero voltage and
the full-scale voltage. Does not include the offset error, full-scale error, or quantization error.
Absolute precision
The deviation between the digital value and the analog input value. Includes the offset error,
full-scale error, quantization error, and nonlinearity error.
Figure 17-8 Analog Input Pin Equivalent Circuit
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Rev. 6.00 Feb 22, 2005 page 691 of 1484
Section 17 A/D Converter
REJ09B0103-0600