AVR128DB48 features three internal operational amplifiers with a flexible connection scheme using analog multiplexers and resistor ladders. This allows a large number of analog signal conditioning configurations, many requiring no external components.
| OPAMP | Poisitive Input (INP) | Negative Input (INN) | Output (OUT) |
|---|---|---|---|
| OP0 | PD1 | PD3 | PD2 |
| OP1 | PD4 | PD7 | PD5 |
| OP2 | PE1 | PE3 | PE2 |
For information about OPAMP on the edge connector and any shared functionality, see AVR128DB48 Curiosity Nano Pinout.