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This paper presents an 8-bit asynchronous SAR ADC for CMOS image sensor applications in 130nm 1P4M technology. The proposed one-side merge-and-split switching effectively reduces the DAC switching energy because the reference voltage is halved. In addition, considering the bottom-plate parasitic capacitance, the proposed method can have better power efficiency compared to other methods. With 1.5V...
This paper presents a low phase noise of the complementary cross-coupled voltage-controlled oscillator, which oscillates at a range of 3.64 ~ 5.37 GHz. This VCO utilizes switching capacitor modules in which eight channels are able to be selected. Moreover, MOS varactors are used as fine tuning. The fully integrated VCO provides excellent performance. The bandwidth of frequency is 1.73 GHz and the...
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