Dynamic sensitivity adjustment for ADC measurements

A power distribution unit (PDU) comprising:

• an input configured to receive input power from an input power source;
• a plurality of outlets configured to provide output power from the input power;
• an analog to digital converter (ADC) including a plurality of channels;
• a microprocessor coupled to the ADC and configured to:
• measure a scale of a signal output from a first channel of the ADC,
• compare the scale of the signal to a sensitivity threshold, and
• select, for a first outlet corresponding to the first channel, a reference voltage of a plurality of reference voltages for input to the ADC based on a result of comparing.

A power distribution unit (PDU) comprising:

• an input configured to receive input power from an input power source;
• a plurality of outlets configured to provide output power;
• an analog to digital converter (ADC) including a plurality of channels;
• means for measuring, for each outlet of the plurality of outlets, a value output by a respective channel of the ADC and corresponding to a value of current through the outlet and for selecting a reference voltage for input to the ADC based on the value measured.