h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 644

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 16 A/D Converter
sample-and-hold circuit in the A/D converter exceeds the current input via the input impedance
(R
when deciding the circuit constants.
Table 16.7 Analog Pin Specifications
Rev. 5.00 Sep 22, 2005 page 618 of 1136
REJ09B0257-0500
Item
Analog input capacitance
Permissible signal source impedance
in
), an error will arise in the analog input pin voltage. Careful consideration is therefore required
Notes:
Note: Values are reference values.
*1
Values are reference values.
1.
2. R
*1
Figure 16.7 Example of Analog Input Protection Circuit
10 µF
in
: Input impedance
Figure 16.8 Analog Input Pin Equivalent Circuit
AN0 to AN11
R
in *2
0.01 µF
100
0.1 µF
10 k
Min
—
—
20 pF
AV
V
AN0 to AN11
AV
ref
CC
SS
To A/D converter
Max
20
5
Unit
pF
kΩ