HD6417144 RENESAS [Renesas Technology Corp], HD6417144 Datasheet - Page 598

• Manufacturer Part Number: HD6417144
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

15. A/D Converter
15.6
This LSI's A/D conversion accuracy definitions are given below.
• Resolution
• Quantization error
• Offset error
• Full-scale error
• Nonlinearity error
• Absolute accuracy
Rev.4.00 Mar. 27, 2008 Page 554 of 882
REJ09B0108-0400
The number of A/D converter digital output codes
The deviation inherent in the A/D converter, given by 1/2 LSB (see figure 15.4).
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 15.5).
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 15.5).
The error with respect to the ideal A/D conversion characteristic between zero voltage and full-
scale voltage. Does not include offset error, full-scale error, or quantization error (see figure
15.5).
The deviation between the digital value and the analog input value. Includes offset error, full-
scale error, quantization error, and nonlinearity error.
Definitions of A/D Conversion Accuracy