Renesas H8/3067 Series User Manual page 615

If a filter circuit is used, be careful of interference with digital signals on the same board, and
make sure the circuit does not act as an antenna.
Sensor output impedance
Up to 10 kΩ
Sensor
input
Low-pass
filter
C Up to 0.1µF
H8/3067 Group
Figure 15.11 Analog Input Circuit (Example)
Equivalent circuit of
10 kΩ
Cin =
15 pF
Rev. 4.00 Jan 26, 2006 page 591 of 938
Section 15 A/D Converter
A/D converter
20 pF
REJ09B0276-0400