公开(公告)号：US20170054415A1

公开(公告)日：2017-02-23

申请号：US14830584

申请日：2015-08-19

Applicant: QUALCOMM Incorporated

Inventor： Dongyang Tang ,  Vijayakumar Dhanasekaran

IPC: H03F1/26 ,  H03F3/45 ,  H03F3/387

CPC classification number: H03F1/26 ,  H03F1/086 ,  H03F1/342 ,  H03F3/187 ,  H03F3/387 ,  H03F3/393 ,  H03F3/45071 ,  H03F3/45475 ,  H03F2200/129 ,  H03F2200/156 ,  H03F2200/159 ,  H03F2200/21 ,  H03F2200/252 ,  H03F2200/372 ,  H03F2200/81 ,  H03F2200/87 ,  H03F2200/91 ,  H03F2203/45116 ,  H03F2203/45134 ,  H03F2203/45136 ,  H03F2203/45151 ,  H03F2203/45221 ,  H03F2203/45528 ,  H03F2203/45534 ,  H03F2203/45562 ,  H03F2203/45594 ,  H03F2203/45601 ,  H03F2203/45614 ,  H03F2203/45616

Abstract: A voltage reference buffer circuit, including: an amplifier having input terminals and output terminals; a plurality of current sources coupled to the input terminals of the amplifier, the plurality of current sources including a plurality of degeneration resistors coupled to a first plurality of voltage supplies; and a degeneration resistor chopping module comprising a first and second plurality of switches coupled to the plurality of degeneration resistors.

Abstract translation: 一种电压参考缓冲电路，包括：具有输入端和输出端的放大器; 耦合到放大器的输入端的多个电流源，所述多个电流源包括耦合到第一多个电压源的多个退化电阻; 以及退化电阻斩波模块，包括耦合到所述多个退化电阻器的第一和第二多个开关。