Low-power-consumption full-CMOS reference source circuit based on subthreshold value
A reference source circuit, low power consumption technology, applied in the direction of adjusting electrical variables, control/regulating systems, instruments, etc., can solve the problems of increasing process manufacturing procedures, incompatibility, increasing costs, etc., achieving low temperature coefficient and small implementation area , the effect of simple structure
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[0039] The present invention will be further described below in conjunction with the accompanying drawings, but the embodiments of the present invention are not limited thereto.
[0040] The present invention utilizes the operating characteristics of CMOS transistors in the sub-threshold region to design a voltage reference source circuit with low power consumption, low temperature coefficient and small area. By using the current characteristics of CMOS operating in the saturation region and the sub-threshold region respectively to construct a suitable voltage relationship, generate a V DD irrelevant small output current, and then realize the voltage output with low temperature coefficient through the body bias mode.
[0041] Such as Figure 5 , a sub-threshold-based low-power full CMOS reference source circuit, including sequentially connecting a startup circuit unit, a current generation circuit unit, and an output active load circuit unit;
[0042] The starting circuit un...
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