公开(公告)号：WO2012087924A3

公开(公告)日：2012-09-07

申请号：PCT/US2011065821

申请日：2011-12-19

Applicant: MICROCHIP TECH INC ,  QUIQUEMPOIX VINCENT ,  DEVAL PHILIPE ,  VAUCHER FABIEN

Inventor： QUIQUEMPOIX VINCENT ,  DEVAL PHILIPE ,  VAUCHER FABIEN

IPC: H03F3/00

CPC classification number: H03F3/005 ,  H03F2200/81 ,  H03M3/342

Abstract: A gain amplifier may have a differential amplifier with feedback capacitors; a switched input stage having a first and second output coupled with the differential amplifier, and having: first and second capacitors, a first input receiving a first signal of a differential input signal; a second input receiving a second signal of the differential input signal; a first plurality of switches controlled by a first clock signal to connect the first terminals of the first capacitor with the first or second input, respectively and to connect the first terminals of the second capacitors with the second and first input, respectively; and a second plurality of switches controlled by a phase shifted clock signal to connect the second terminal of the first capacitor with a first or second input of the differential amplifier and connecting the second terminal of the second capacitor with the second or first input of the differential amplifier.

Abstract translation: 增益放大器可以具有带反馈电容器的差分放大器; 开关输入级具有与所述差分放大器耦合的第一和第二输出，并具有：第一和第二电容器，接收差分输入信号的第一信号的第一输入; 接收差分输入信号的第二信号的第二输入; 第一多个开关，由第一时钟信号控制，分别将第一电容器的第一端子与第一或第二输入端相连，并分别将第二电容器的第一端子与第二和第一输入端连接; 以及由相移时钟信号控制的第二多个开关，以将第一电容器的第二端子与差分放大器的第一或第二输入端连接，并将第二电容器的第二端子与差分放大器的第二或第一输入端 放大器。

公开(公告)号：WO2012087924A2

公开(公告)日：2012-06-28

申请号：PCT/US2011/065821

申请日：2011-12-19

Applicant: MICROCHIP TECHNOLOGY INCORPORATED ,  QUIQUEMPOIX, Vincent ,  DEVAL, Philipe ,  VAUCHER, Fabien

Inventor： QUIQUEMPOIX, Vincent ,  DEVAL, Philipe ,  VAUCHER, Fabien

IPC: H03F3/00

CPC classification number: H03F3/005 ,  H03F2200/81 ,  H03M3/342

Abstract: A gain amplifier may have a differential amplifier with feedback capacitors; a switched input stage having a first and second output coupled with the differential amplifier, and having: first and second capacitors, a first input receiving a first signal of a differential input signal; a second input receiving a second signal of the differential input signal; a first plurality of switches controlled by a first clock signal to connect the first terminals of the first capacitor with the first or second input, respectively and to connect the first terminals of the second capacitors with the second and first input, respectively; and a second plurality of switches controlled by a phase shifted clock signal to connect the second terminal of the first capacitor with a first or second input of the differential amplifier and connecting the second terminal of the second capacitor with the second or first input of the differential amplifier.

Abstract translation: 增益放大器可以具有带反馈电容器的差分放大器; 开关输入级，具有与差分放大器耦合的第一和第二输出端，并具有：第一和第二电容器，第一输入端，接收差分输入信号的第一信号; 接收差分输入信号的第二信号的第二输入端; 第一多个开关，其由第一时钟信号控制，以分别将第一电容器的第一端子与第一输入或第二输入连接，并将第二电容器的第一端子分别与第二输入和第一输入连接; 以及由相移时钟信号控制的第二多个开关，以将第一电容器的第二端子与差分放大器的第一或第二输入端连接，并将第二电容器的第二端子与差分放大器的第二或第一输入端 放大器。