UPD78F1502AGK-GAK-AX Datasheet, PDF (441/1031 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcontrollers

78K0R/Lx3
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CHAPTER 12 OPERATIONAL AMPLIFIER (μ PD78F150xA only)
CHAPTER 12 OPERATIONAL AMPLIFIER (μ PD78F150xA only)
Item
Operational
amplifier
78K0R/LF3
(μPD78F150nA: n = 0 to 2)
80 pins
2 ch (operational amplifiers 0, 1)
78K0R/FG3
(μPD78F150nA: n = 3 to 5)
78K0R/LH3
(μPD78F150nA: n = 6 to 8)
100 pins
128 pins
3 ch (operational amplifiers 0 to 2)
12.1 Function of Operational Amplifier
Operational amplifiers are mounted onto products of 78K0R/Lx3 microcontrollers. The operational amplifiers have the
following modes.
• Single AMP mode
The difference in potential of analog voltages input from two pins (AMPn− and AMPn+ pins) is amplified and the
amplified voltage is output from the AMPnO pin.
The amplified voltage can be used as an analog input of the A/D converter, because the AMPnO pin is alternatively
used with analog input pin of the A/D converter.
Remark 78K0R/LF3:
n = 0, 1
78K0R/LG3, 78K0R/LH3: n = 0 to 2
12.2 Configuration of Operational Amplifier
The operational amplifiers consist of the following hardware.
Table 12-1. Configuration of Operational Amplifiers
Item
Configuration
Operational amplifier input AMPn- pin, AMPn+ pin
Operational amplifier output AMPnO pin
Control registers
Peripheral enable register 0 (PER0)
Operational amplifier control register (OAC)
A/D configuration register (ADPC)
Port mode registers 2, 15 (PM2, PM15)
Remark 78K0R/LF3:
n = 0, 1
78K0R/LG3, 78K0R/LH3: n = 0 to 2
R01UH0004EJ0501 Rev.5.01
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Jun 20, 2011