8-bit AVR Microcontroller

Analog Comparator

When entering Idle mode, the Analog Comparator should be disabled if not used. In the power-down mode, the analog comparator is automatically disabled. See Analog Comparator for further details.

When entering ADC Noise Reduction mode, the Analog Comparator should be disabled. However, if the Analog Comparator is set up to use the Internal Voltage Reference as input, the Analog Comparator should be disabled in all sleep modes. Otherwise, the Internal Voltage Reference will be enabled, independent of sleep mode.