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CHAPTER 13 OPERATIONAL AMPLIFIER
User’s Manual U19780EJ2V0UD
355
Figure 13-1. Block Diagram of Operational Amplifier
Operational amplifier control register
(OAC)
Operational amplifier
voltage controller
AMP0+/ANI2/P22
OAEN0 bit
AMP0-/ANI0/P20
AMP0OUT/ANI1/P21
AMP0
_
+
Operational amplifier 0
To A/D converter
Internal bus
OAIM0 OAEN2 OAEN1 OAEN0
OAIM1
AMP1+/ANI5/P25
OAEN1 bit
AMP1-/ANI3/P23
AMP1OUT/ANI4/P24
AMP1
_
+
Operational amplifier 1
To A/D converter
AMP2+/ANI10/P82
AMP2-/ANI8/P80
AMP2OUT/ANI9/P81
AMP2
_
+
Operational amplifier 2
To A/D converter