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This paper presents 3D IC design of a fully integrated four-phase buck converter. The control circuit was implemented in the TSMC 0.18μm CMOS Mixed Signal RF General Purpose MiM Al 1P6M 1.8 & 3.3V process while the passive components were implemented in the tMt Glass Substrate Integrated Passive Device (IPD) Process, and then these two dies are stacked. Thus, a high output loading current can...
This paper presents a continuous time lowpass sigma-delta ADC for LTE communication with a chain of integrators and with capacitive feedforward summation (CICFF) plus circuit — which is an ideal function for implementation in low power applications. The summation of feedforward signals is achieved by capacitors plus, without the essential thing of any extra active components which can be used for...
This paper proposes an area-efficient fully resistor-string digital-to-analog-converter (R-DAC)-based thin-film transistor liquid crystal display (TFT-LCD) column driver in which DACs supply only negative-polarity voltages, while polarity inverters generate positive-polarity voltages from negative-polarity voltages. An offset cancellation technique is employed in negative-polarity buffers and polarity...
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