The LTC2947 is a power and energy monitor that includes a 30A sense resistor and targets DC supply rails in the 0V to 15V range. Three integrated DS ADCs and an internal or external precision time base (crystal or clock) enable accurate measurement of multiple parameters, including current, voltage, power, charge, energy, temperature, and time. All digital readings, including minimum and maximum values, are stored in registers accessible by a selectable I2C or SPI interface. A dedicated alert pin is also available and signals when measurements exceed configurable warning thresholds.