HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 752

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 16 A/D Converter (8 Analog Input Channel Version)
Influences on Absolute Precision: Adding capacitance results in coupling with GND, and
therefore noise in GND may adversely affect absolute precision. Be sure to make the connection to
an electrically stable GND such as AV
Care is also required to insure that filter circuits do not communicate with digital signals on the
mounting board, so acting as antennas.
Rev.6.00 Sep. 27, 2007 Page 722 of 1268
REJ09B0220-0600
Sensor input
Note: Values are reference values.
Sensor output
impedance
Max. 5 kΩ
Low-pass
filter C
to 0.1 µF
Figure 16.10 Example of Analog Input Circuit
SS
.
Chip
C
in
= 15 pF
A/D converter
equivalent circuit
10 kΩ
20 pF