提出了一种用于高速电荷域流水线模数转换器(Analog-to-Digital Converter,ADC)中的高精度大摆幅电荷传输电路,采用栅压自举技术,克服了现有电荷传输电路中信号摆幅受限的问题。基于该技术,采用0.18μm CMOS工艺,设计并实现了一款14位20...提出了一种用于高速电荷域流水线模数转换器(Analog-to-Digital Converter,ADC)中的高精度大摆幅电荷传输电路,采用栅压自举技术,克服了现有电荷传输电路中信号摆幅受限的问题。基于该技术,采用0.18μm CMOS工艺,设计并实现了一款14位200 MS/s电荷域流水线ADC。在189.9 MHz信号输入和全采样率条件下,信噪比为61.7 d BFS,无杂散动态范围为72.6 d Bc;在1.8 V供电下,ADC整体功耗仅为102 m W。展开更多
A novel matching cell circuitry using charge transfer circuit technique for high precision correlation calculation is presented.The cell calculates the absolute value of the difference between two analog input volt...A novel matching cell circuitry using charge transfer circuit technique for high precision correlation calculation is presented.The cell calculates the absolute value of the difference between two analog input voltages and amplifies the result.Amplification gain can be designed by the capacitance size in the cell and threshold voltage mismatch can be canceled automatically,thus high precision operation of the circuit is achieved.The circuit can be operated with low power dissipation of about 12μW at a frequency of 50MHz.Because of its simple structure and small silicon area,the matching cell is suitable to realize the correlation dealing with many template vectors that have many elements in a chip.展开更多
文摘提出了一种用于高速电荷域流水线模数转换器(Analog-to-Digital Converter,ADC)中的高精度大摆幅电荷传输电路,采用栅压自举技术,克服了现有电荷传输电路中信号摆幅受限的问题。基于该技术,采用0.18μm CMOS工艺,设计并实现了一款14位200 MS/s电荷域流水线ADC。在189.9 MHz信号输入和全采样率条件下,信噪比为61.7 d BFS,无杂散动态范围为72.6 d Bc;在1.8 V供电下,ADC整体功耗仅为102 m W。
文摘A novel matching cell circuitry using charge transfer circuit technique for high precision correlation calculation is presented.The cell calculates the absolute value of the difference between two analog input voltages and amplifies the result.Amplification gain can be designed by the capacitance size in the cell and threshold voltage mismatch can be canceled automatically,thus high precision operation of the circuit is achieved.The circuit can be operated with low power dissipation of about 12μW at a frequency of 50MHz.Because of its simple structure and small silicon area,the matching cell is suitable to realize the correlation dealing with many template vectors that have many elements in a chip.
