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Low Power Analog and Mixed-signal Circuit
A sub-nW Gate Leakage-based Timer with Low Temperature and Supply Dependence
An ultra-low power timer requires current in order of few pA which is too small to be created by using resistor. One of approaches is to use gate leakage as a current reference. Compensating temperature and supply dependence of gate leakage, a sub-nW timer with decent temperature coefficient and line sensitivity is proposed.