公开(公告)号：US3852679A

公开(公告)日：1974-12-03

申请号：US31864672

申请日：1972-12-26

Applicant: RCA CORP

Inventor： SCHADE O

IPC: H03F3/343 ,  G05F3/26 ,  H03F3/34 ,  H03F3/345 ,  H03F3/347 ,  H03F3/45 ,  H03F3/68

CPC classification number: H03F3/4508 ,  G05F3/267 ,  H03F3/347 ,  H03F3/45183 ,  H03F3/45766 ,  H03F2203/45594 ,  H03F2203/45674 ,  H03F2203/45676 ,  H03F2203/45686 ,  H03F2203/45688 ,  H03F2203/45696

Abstract: A current mirror amplifier for combining the output currents of an MOS source-coupled differential amplifier comprises first and second bipolar transistors having parallelled base-emitter circuits including emitter degenerative resistors. A similar resistor judicially placed in the collector circuit of one of these bipolar transistors ensures that the differential amplifier will not exhibit an offset potential between its input terminals caused by its component devices being subjected to different conditions of quiescent drain biasing when the differential amplifier supplies its combined output currents by direct coupling to a subsequent grounded-emitter amplifier stage.

Abstract translation: 用于组合MOS源极耦合差分放大器的输出电流的电流镜放大器包括具有并联的基极 - 发射电路的第一和第二双极晶体管，包括发射极退化电阻。 在这些双极型晶体管之一的集电极电路中，司法上放置的类似电阻确保了当差分放大器提供其差分放大器时，差分放大器在其输入端子之间不会出现由其组件器件经受不同静态漏极偏置条件引起的偏置电位 通过直接耦合到后续接地 - 发射极放大器级的组合输出电流。