Abstract:A low voltage high-accuracy power on reset circuit with an ultra-low quiescent current is proposed in this paper. The circuit employs a 5-transistor voltage reference with a good temperature stability instead of bandgap to provide a precise reference voltage, which is compared with the supply voltage to generate an accurate trip voltage. A 4-transistor complementary-to-absolute-temperature voltage reference is proposed for temperature compensation and reduces significantly the trip voltage deviation. The propo… Show more
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