公开(公告)号：US20020167356A1

公开(公告)日：2002-11-14

申请号：US10144623

申请日：2002-05-13

Applicant: STMicroelectronics S.A.

Inventor： Claude Renous ,  Francois Van-Zanten

IPC: H03F003/45

CPC classification number: H03F3/3023 ,  H03F3/45188 ,  H03F3/45659 ,  H03F2203/45711

Abstract: A wideband differential amplifier includes a first differential stage connected to a Miller stage allowing an open-loop gain increase. The Miller stage includes a current source and a resistive-capacitive network causing a feedback into the current source. The feedback includes a portion of a Miller stage output signal having a high frequency range to move a bias point of the current source within the high frequency range. Thus, a gain of the Miller stage significantly increases towards the bias point.

Abstract translation: 宽带差分放大器包括连接到Miller级的第一差分级，允许开环增益增加。 米勒级包括电流源和电阻电容网络，导致反馈到电流源。 反馈包括具有高频范围的米勒级输出信号的一部分，以将电流源的偏置点移动到高频范围内。 因此，米勒阶段的增益显着地朝向偏向点增加。