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HD64F3048F16 Datasheet, PDF (586/903 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents | |||
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Section 15 A/D Converter
AN0 to AN7
10 kâ¦
To A/D converter
20 pF
Note: Numeric values are approximate.
Figure 15.8 Analog Input Pin Equivalent Circuit
Table 15.5 Analog Input Pin Ratings
Item
Min
Max
Unit
Analog input capacitance
â
20
pF
Allowable signal-source impedance Ï â¤ 13 MHz
â
10
kâ¦
Ï > 13 MHz
â
5
kâ¦
6. A/D Conversion Accuracy Definitions: A/D conversion accuracy in the H8/3048B Group is
defined as follows:
⢠Resolution
Digital output code length of A/D converter
⢠Offset error
Deviation from ideal A/D conversion characteristic of analog input voltage required to
raise digital output from minimum voltage value B'0000000000 to B'0000000001 (figure
15.10)
⢠Full-scale error
Deviation from ideal A/D conversion characteristic of analog input voltage required to
raise digital output from B'1111111110 to B'1111111111 (figure 15.10)
⢠Quantization error
Intrinsic error of the A/D converter; 1/2 LSB (figure 15.9)
⢠Nonlinearity error
Deviation from ideal A/D conversion characteristic in range from zero volts to full scale,
exclusive of offset error, full-scale error, and quantization error.
⢠Absolute accuracy
Deviation of digital value from analog input value, including offset error, full-scale error,
quantization error, and nonlinearity error.
Rev. 3.00 Sep 27, 2006 page 558 of 872
REJ09B0325-0300
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