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Section 15 A/D Converter
*1
*1
Notes: 1.
10 µF
2. Rin: input impedance
Figure 15.7 Example of Analog Input Protection Circuit
Table 15.5 Analog Input Pin Ratings
Item
Analog input capacitance
Allowable signal-source impedance
Note: * When conversion time = 134 states, V
section 21, Electrical Characteristics.
Note: Numeric values are approximate, except in table 15.5
Rev. 4.00 Jan 26, 2006 page 588 of 938
REJ09B0276-0400
100 Ω
*2
Rin
0.1 µF
0.01 µF
10 kΩ
AN
to AN
0
7
Figure 15.8 Analog Input Pin Equivalent Circuit
AV
CC
V
REF
AN
to AN
0
7
AV
SS
min
max
—
20
—
10*
= 4.0 V to 5.5 V, and φ ≤ 13 MHz. For details see
CC
To A/D converter
20 pF
Unit
pF
kΩ
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