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Chapter 15 A/D Converter
Operation
XV - 16
15-3-3 Cautions
A/D conversion can be damaged by noise easily, therefore, anti-noise measures should be taken ad-
equately .
Anti-noise measures
To A/D input (analog input pin), add condenser near the VSS pins of micro controller.
Figure 15-3-2 A/D Converter Recommended Example 1
Figure 15-3-3 A/D Converter Recommended Example 2
VDD
Digital VDD
Analog VDD
Power supply
Digital V
SS
Analog VSS
Set near the VSS pin
V
SS
VREF+
VREF-
AN0
to
AN6
VDD
VDD
VSS
Power supply
Set near the V
SS pin.
V
SS
VREF+
VREF-
AN0
to
AN6