44.6.9 Standalone Mode
Each operational amplifier can be used as standalone amplifier. In this mode, positive input, negative input and the output are routed from/to external I/Os, requiring external feedback. OPAMPs can also be cascaded to support multiple OPAMP configurations. Refer to Operational Amplifier Control x register (OPAMPCTRLx) for further details on how to configure OPAMP I/Os.