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    • 1. 发明授权
    • Method of controlling pipeline analog-to-digital converter and pipeline analog-to-digital converter implementing the same
    • 控制流水线模数转换器和实施该模拟数字转换器的管线模数转换器的方法
    • US07583219B2
    • 2009-09-01
    • US12027495
    • 2008-02-07
    • Young Deuk JeonYoung Kyun ChoKwi Dong KimJong Kee KwonJong Dae KimSeung Chul Lee
    • Young Deuk JeonYoung Kyun ChoKwi Dong KimJong Kee KwonJong Dae KimSeung Chul Lee
    • H03M1/38
    • H03M1/1245H03M1/002H03M1/44
    • Provided are a pipeline Analog-to-Digital Converter (ADC) without a front-end Sample-and-Hold Amplifier (SHA) and a method of controlling the same. The method includes the steps of: simultaneously sampling, at an ADC and a residual signal generator included in a first stage, an analog input signal and respectively generating a first sampling value and a second sampling value; holding, at the residual signal generator, the second sampling value, and simultaneously amplifying and converting, at the ADC, the first sampling value into a corresponding digital code; and generating, at the residual signal generator, a residual signal using the digital code. The pipeline ADC and method of controlling the same minimize sampling mismatch caused by removing a front-end SHA, thereby ensuring stable performance without a front-end SHA. Since a front-end SHA is not used, it is possible to reduce chip size and power consumption, and improve the performance of the ADC.
    • 提供了没有前端采样保持放大器(SHA)的管线模数转换器(ADC)及其控制方法。 该方法包括以下步骤:在ADC和包括在第一级中的残余信号发生器同时对模拟输入信号进行采样,并分别产生第一采样值和第二采样值; 在剩余信号发生器处保持​​第二采样值,并且同时在ADC处放大并转换第一采样值为相应的数字代码; 以及在剩余信号发生器处产生使用数字码的残留信号。 流水线ADC和控制相同的方法最小化了通过去除前端SHA引起的采样失配,从而确保了没有前端SHA的稳定性能。 由于不使用前端SHA,因此可以减少芯片尺寸和功耗,并提高ADC的性能。
    • 4. 发明申请
    • MULTI-BIT PIPELINE ANALOG-TO-DIGITAL CONVERTER HAVING SHARED AMPLIFIER STRUCTURE
    • 具有共享放大器结构的多位管线模拟数字转换器
    • US20080068237A1
    • 2008-03-20
    • US11695143
    • 2007-04-02
    • Young Deuk JeonSeung Chul LeeKwi Dong KimJong Kee KwonJong Dae Kim
    • Young Deuk JeonSeung Chul LeeKwi Dong KimJong Kee KwonJong Dae Kim
    • H03M1/12
    • H03M1/1225H03M1/168
    • Provided is a multi-bit pipeline analog-to-digital converter (ADC) having a shared amplifier structure. The multi-bit pipeline ADC includes: a sample-and-hold amplifier (SHA) for sampling and holding an input analog voltage and removing a sampling error of the input voltage; N-bit flash ADCs of first to K-th stages receiving analog signals, converting them into digital signals and outputting the digital signals; N-bit multiplying digital-to-analog converters (MDACs) of first to K-th stages converting differences between the digital signals output from the N-bit flash ADCs and output signals of preceding stages back into analog signals and outputting the analog signals; and a three-stage amplifier connected with an output of the N-bit MDAC of the first stage at a first clock and an output of the SHA at a second clock, wherein N is an integer greater than or equal to 1 and K is an integer greater than or equal to 2.In the multi-bit pipeline ADC, an amplifier can be shared between an SHA consuming much power and an MDAC of a first stage, so that power consumption and chip size can be reduced.
    • 提供了具有共享放大器结构的多位流水线模数转换器(ADC)。 多位流水线ADC包括:采样和保持放大器(SHA),用于采样和保持输入模拟电压并消除输入电压的采样误差; 第一至第K级的N位闪存ADC接收模拟信号,将其转换为数字信号并输出​​数字信号; 第一到第K级的N位乘法数模转换器(MDAC)将从N位闪存ADC输出的数字信号与前级的输出信号之间的差值转换成模拟信号并输出​​模拟信号; 以及在第一时钟与第一级的N位MDAC的输出和第二时钟的SHA的输出连接的三级放大器,其中N是大于或等于1的整数,并且K是 整数大于或等于2.在多位流水线ADC中,可以在消耗大量功率的SHA和第一级的MDAC之间共享放大器,从而可以降低功耗和芯片尺寸。
    • 5. 发明授权
    • Multi-bit pipeline analog-to-digital converter having shared amplifier structure
    • 具有共享放大器结构的多位流水线模数转换器
    • US07397409B2
    • 2008-07-08
    • US11695143
    • 2007-04-02
    • Young Deuk JeonSeung Chul LeeKwi Dong KimJong Kee KwonJong Dae Kim
    • Young Deuk JeonSeung Chul LeeKwi Dong KimJong Kee KwonJong Dae Kim
    • H03M1/12
    • H03M1/1225H03M1/168
    • A multi-bit pipeline analog-to-digital converter (ADC) having a shared amplifier structure includes: a sample-and-hold amplifier (SHA) for sampling and holding an input analog voltage and removing a sampling error of the input voltage; N-bit flash ADCs of first to K-th stages receiving analog signals, converting them into digital signals and outputting the digital signals; N-bit multiplying digital-to-analog converters (MDACs) of first to K-th stages converting differences between the digital signals output from the N-bit flash ADCs and output signals of preceding stages back into analog signals and outputting the analog signals; and a three-stage amplifier connected to an output of the N-bit MDAC of the first stage at a first clock and an output of the SHA at a second clock, wherein intergers N>= and K>=2. An amplifier can be shared between an SHA and an MDAC of a first stage, thereby reducing power consumption and chip size.In the multi-bit pipeline ADC, an amplifier can be shared between an SHA consuming much power and an MDAC of a first stage, so that power consumption and chip size can be reduced.
    • 具有共享放大器结构的多位流水线模数转换器(ADC)包括:采样和保持放大器(SHA),用于采样和保持输入模拟电压并去除输入电压的采样误差; 第一至第K级的N位闪存ADC接收模拟信号,将其转换为数字信号并输出​​数字信号; 第一到第K级的N位乘法数模转换器(MDAC)将从N位闪存ADC输出的数字信号与前级的输出信号之间的差值转换成模拟信号并输出​​模拟信号; 以及三级放大器,在第一时钟连接到第一级的N位MDAC的输出,在第二时钟连接到SHA的输出,其中,间隔N> =且K> = 2。 放大器可以在第一级的SHA和MDAC之间共享,从而降低功耗和芯片尺寸。 在多位流水线ADC中,放大器可以在消耗大量功率的SHA和第一级的MDAC之间共享,从而可以降低功耗和芯片尺寸。