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A Low Power Analog to Digital Interface for Digitally Controlled DC-DC Converter
Dong Han,Liansoon Ng,Lam YH Yvonne 대한전자공학회 2008 ITC-CSCC :International Technical Conference on Ci Vol.2008 No.7
This paper presents a novel low power analog to digital interface (ADI) for digitally controlled DC-DC converter. The whole ADI has been implemented in commercial 0.18 ㎛ CMOS process design kit. Simulation results validate the design concept. The proposed ADI consumes 7.5 ㎂ current under 1 V supply voltage with 500 ㎑ sampling rate and 4-bit resolution. It is very suitable for digitally controlled pulse width modulation (PWM) mode DC-DC converter.