47.6.2.1 Initialization

The OPAMP must be configured with the desired properties and inputs before it is enabled.

A clock (CLK_ULP32K) is required by the voltage doubler for low voltage operation (VCC < 2.5V). The CLK_ULP32K is a 32.768 kHz clock which is provided by the OSCULP32K oscillator in the OSC32KCTRL module. See OSC32KCTRL – 32KHz Oscillators Controller for further details.