公开(公告)号：US20160373101A1

公开(公告)日：2016-12-22

申请号：US15182430

申请日：2016-06-14

Applicant: ANALOG DEVICES GLOBAL

Inventor： Yunzhi Dong ,  VICTOR KOZLOV ,  WENHUA W. YANG ,  TREVOR CLIFFORD CALDWELL ,  HAJIME SHIBATA

IPC: H03K5/14 ,  H03M3/00 ,  H03H7/30 ,  H03M1/00

CPC classification number: H03K5/14 ,  H03H7/30 ,  H03K2005/00254 ,  H03K2005/00267 ,  H03M1/001 ,  H03M1/164 ,  H03M3/464

Abstract: An integrated constant time delay circuit utilized in continuous-time (CT) analog-to-digital converters (ADCs) can be implemented with an RC lattice structure to provide, e.g., a passive all-pass lattice filter. Additional poles created by decoupling capacitors can be used to provide a low-pass filtering effect in some embodiments. A Resistor-Capacitor “RC” lattice structure can be an alternative to a constant-resistance Inductor-Capacitor “LC” lattice implementation. ADC architectures benefit from the RC implementation, due to its ease of impedance scaling and smaller area.

Abstract translation: 在连续时间（CT）模数转换器（ADC）中使用的集成恒定时间延迟电路可以用RC晶格结构来实现，以提供例如无源全通晶格滤波器。 在一些实施例中，可以使用由去耦电容产生的附加极点来提供低通滤波效应。 电阻器 - 电容器“RC”晶格结构可以是恒定电阻电感器“LC”晶格实现的替代。 ADC架构由于RC实现而受益，因为其易于阻抗缩放和面积更小。