公开(公告)号：EP3378159A1

公开(公告)日：2018-09-26

申请号：EP16867015.6

申请日：2016-11-16

Applicant: Tensorcom, Inc.

Inventor： SOE, Zaw ,  JING, Kevin ,  GAO, Steve

IPC: H03G3/30 ,  H03F3/45 ,  H03H11/12

CPC classification number: H03G1/007 ,  H03F3/45197 ,  H03F2200/165 ,  H03F2200/69 ,  H03F2203/45372 ,  H03F2203/45374 ,  H03F2203/45512 ,  H03F2203/45544 ,  H03F2203/45594 ,  H03F2203/45686 ,  H03F2203/45702 ,  H03G5/28 ,  H03H11/1286

Abstract: A circuit comprises a Sallen-Key filter, which includes a source follower that implements a unity-gain amplifier; and a programmable-gain amplifier coupled to the Sallen-Key filter. The circuit enables programmable gain via adjustment to a current mirror copying ratio in the programmable-gain amplifier, which decouples the bandwidth of the circuit from its gain settings. The programmable-gain amplifier can comprise a differential voltage-to-current converter, a current mirror pair, and programmable output gain stages. The Sallen-Key filter and at least one branch in the programmable-gain amplifier can comprise transistors arranged in identical circuit configurations.

公开(公告)号：WO2017087485A1

公开(公告)日：2017-05-26

申请号：PCT/US2016/062224

申请日：2016-11-16

Applicant: TENSORCOM, INC.

Inventor： SOE, Zaw ,  JING, Kevin ,  GAO, Steve

IPC: H03G3/30 ,  H03F3/45 ,  H03H11/12

CPC classification number: H03G1/007 ,  H03F3/45197 ,  H03F2200/165 ,  H03F2200/69 ,  H03F2203/45372 ,  H03F2203/45374 ,  H03F2203/45512 ,  H03F2203/45544 ,  H03F2203/45594 ,  H03F2203/45686 ,  H03F2203/45702 ,  H03G5/28 ,  H03H11/1286

Abstract: A circuit comprises a Sallen-Key filter, which includes a source follower that implements a unity-gain amplifier; and a programmable-gain amplifier coupled to the Sallen-Key filter. The circuit enables programmable gain via adjustment to a current mirror copying ratio in the programmable-gain amplifier, which decouples the bandwidth of the circuit from its gain settings. The programmable-gain amplifier can comprise a differential voltage-to-current converter, a current mirror pair, and programmable output gain stages. The Sallen-Key filter and at least one branch in the programmable-gain amplifier can comprise transistors arranged in identical circuit configurations.

Abstract translation: 一种电路包括Sallen-Key滤波器，其包括实现单位增益放大器的源极跟随器; 和一个耦合到Sallen-Key滤波器的可编程增益放大器。 该电路通过调节可编程增益放大器中的电流镜像复制比来启用可编程增益，该放大器将电路的带宽与其增益设置分离。 可编程增益放大器可以包括差分电压 - 电流转换器，电流镜像对和可编程输出增益级。 Sallen-Key滤波器和可编程增益放大器中的至少一个分支可以包括以相同电路配置排列的晶体管。