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| Abstract |
In this work, a high precision current source circuit by means of switched-capacitor and PLL (phase-locked loop) for BOST (build-out-self-test) is presented. A relationship between the reference curre...nt value and switching-frequency is analyzed to improve the precision of current source circuit. The proposed circuit operates under 3.3V supply with a 100μA reference current source according to Hspice simulation and shows a precision less than 0.8%.show more
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