4.2 Software Output Control (SOC)

There are three software defined output modes that are selected using the SOC bits of the OPAxCON0 register:

• Basic operation in user-defined configuration or unity gain
• Rail drive to V_DD
• Rail drive to V_SS

In Rail Drive modes, the OPA module output is forced to V_DD or V_SS, depending on the configuration of the SOC bits. In these modes, feedback configuration and the OPA inputs do not affect the output. When the OPA module is configured in basic operation, the OPA module output will respond to the OPA inputs and the user-defined feedback configuration.