Datasheet

78K0/Kx2-L CHAPTER 13 OPERATIONAL AMPLIFIERS
R01UH0028EJ0400 Rev.4.00 435
Sep 27, 2010
13.2 Configuration of Operational Amplifier
The operational amplifiers consist of the following hardware.
Table 13-1. Configuration of Operational Amplifier
Item Configuration
Operational amplifier input
PGAIN pin, AMPn- pin, AMPn+ pin
Operational amplifier output AMPnOUT pin
Control registers
Operational amplifier n control register (AMPnM)
A/D configuration register n (ADPCn)
Analog input channel specification register (ADS)
Port mode registers 1, 2 (PM1, PM2)
Remark Products with operational amplifier of the 78K0/KY2-L and 78K0/KA2-L: n = 0
Products with operational amplifier of the 78K0/KB2-L and 78K0/KC2-L: n = 0, 1
Figure 13-1. Block Diagram of Operational Amplifier
AMP0
VG1
AMP0
VG0
OPAM
P1E
Operational amplifier 1 control register
(AMP1M)
OPAM
P0E
PGAEN
Operational amplifier 0 control register
(AMP0M)
AMP1+/ANI10/P12
AMP1-/ANI8/P10
AMP1OUT/ANI9/P11
AMP1
AMP0+/ANI2/P22
AMP0-/ANI0/P20
AMP0OUT/PGAIN/ANI1/P21
AMP0
_
+
_
+
_
+
PGA
Operational amplifier 0
Operational amplifier 1
To A/D converter
(Analog input channel: PGAOUT)
To A/D converter
(Analog input channel: ANI1)
To A/D converter
(Analog input channel: ANI9)
Internal bus
Selector
<R>