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We propose a bandgap reference, which works in sub-threshold regions to the reduce power consumption in applications such as those in energy harvesting systems that stimulate the development of power management for low power consumption applications.Measurements shows that the supply current of the proposed bandgap reference is only 6.87 μA, including a voltage buffer consuming 3.6 μA of supply current, when the supply voltage is 5 V.The supply voltage can vary from 3 to 11 V and the line regulation of the proposed bandgap reference output voltage is 0.875 mV/V at room temperature.The temperature coefficiency is 88.9 ppm from 10 to 100° C when the supply voltage is 5 V.
We propose a bandgap reference, which works in sub-threshold regions to reduce power consumption in applications such as those in energy harvesting systems that stimulate the development of power management for low power consumption applications. Measurements that that supply current of the proposed bandgap reference is only 6.87 μA, including a voltage buffer 3.6 3.6 μA of supply current when the supply voltage is 5 V. The supply voltage can vary from 3 to 11 V and the line regulation of the proposed band gap reference output voltage is 0.875 mV / V at room temperature. The temperature coefficiency is 88.9 ppm from 10 to 100 ° C when the supply voltage is 5 V.