41.6.1 Principle of Operation

Each OPAMP has one positive and one negative input. Each input may be chosen from either a selection of analog input pins, or internal inputs such as the DAC, the resistor ladder, and the ground and output of another OPAMP.

Each OPAMP can be configured with built-in feedback to support various functions with programmable or unity gain.

I/O pins are externally accessible so that the operational amplifier can be configured with external feedback.

All OPAMPs can be cascaded to support circuits such as differential amplifiers.