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Invention Publication
CN110048720A 两步式快闪模/数转换器的参考电压控制电路 有权

两步式快闪模/数转换器的参考电压控制电路
Abstract:
本申请案涉及快闪模/数转换器。一种可用于快闪模/数转换器中的电路(110)包含：第一开关(SW1)，其经配置以响应于第一控制信号(OUTP)而将第一参考电压(REFP)提供到第一参考节点(REF1)；及第二开关(SW2)，其经配置以响应于第二控制信号(OUTM)而将所述第一参考电压提供到第二参考节点(REFP)。第三开关(SW3)耦合到所述第一开关(SW1)且经配置以响应于时钟信号而将第二参考电压(REFM)提供到所述第一参考节点(REF1)。此外，第四开关(SW4)耦合到所述第二开关(SW2)且经配置以响应于所述时钟信号而将所述第二参考电压(REFM)提供到所述第二参考节点(REF2)。
Abstract(English):

The invention relates to a flash analog-to-digital converter. A circuit (110) capable of working in a flash analog-to-digital converter includes: a first switch (SW1) configured to provide a first reference voltage (REFP) to a first reference node (REF1) in response to a first control signal (OUTP); and a second switch (SW2) configured to provide the first reference voltage to a second reference node (REFP) in response to a second control signal (OUTM). A third switch (SW3) is coupled to the first switch (SW1) and is configured to provide a second reference voltage (REFM) to the first reference node (REF1) in response to a clock signal. Further, a fourth switch (SW4) is coupled to the second switch (SW2) and is configured to provide the second reference voltage (REFM) to the second reference node (REF2) in response to the clock signal.

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