公开(公告)号：US07605655B2

公开(公告)日：2009-10-20

申请号：US12129364

申请日：2008-05-29

申请人： Jongsik Kim ,  Sangwon Han ,  Hyunchol Shin

发明人： Jongsik Kim ,  Sangwon Han ,  Hyunchol Shin

IPC分类号： H03F3/45

CPC分类号： H03F3/45188 ,  H03F1/223 ,  H03F1/3205 ,  H03F1/3211 ,  H03F3/195 ,  H03F3/45201 ,  H03F3/45677 ,  H03F3/4569 ,  H03F2200/108 ,  H03F2200/451 ,  H03F2203/45008 ,  H03F2203/45362 ,  H03F2203/45392 ,  H03F2203/45464 ,  H03F2203/45496

摘要： There is provided a highly linear differential amplifying circuit. The highly linear differential amplifying circuit includes: a differential amplifying unit including a main differential amplifying unit having a differential pair of transistors for amplifying a difference of two input signals and an auxiliary amplifying unit connected in parallel with the main differential amplifying unit, wherein second-order derivatives of transconductances of the main differential amplifying unit and the auxiliary differential amplifying unit are properly set to have an offset; and a source degeneration resistor unit including a first source degeneration resistor to a fourth source degeneration resistor. Accordingly, the linearity of the differential amplifying circuit is improved at a wide output power region.

摘要翻译： 提供了高度线性的差分放大电路。 高线性差分放大电路包括：差分放大单元，包括具有用于放大两个输入信号的差的晶体管的差分对的主差分放大单元和与主差分放大单元并联连接的辅助放大单元， 主差分放大单元和辅助差分放大单元的跨导的顺序导数被适当地设置为具有偏移; 以及源极退化电阻器单元，其包括到第四源极退变电阻器的第一源极退变电阻器。 因此，在宽的输出功率区域，差分放大电路的线性度得到改善。

公开(公告)号：US20090219092A1

公开(公告)日：2009-09-03

申请号：US12129364

申请日：2008-05-29

申请人： Jongsik KIM ,  Sangwon Han ,  Hyunchol Shin

发明人： Jongsik KIM ,  Sangwon Han ,  Hyunchol Shin

IPC分类号： H03F3/45 ,  H03G3/12

CPC分类号： H03F3/45188 ,  H03F1/223 ,  H03F1/3205 ,  H03F1/3211 ,  H03F3/195 ,  H03F3/45201 ,  H03F3/45677 ,  H03F3/4569 ,  H03F2200/108 ,  H03F2200/451 ,  H03F2203/45008 ,  H03F2203/45362 ,  H03F2203/45392 ,  H03F2203/45464 ,  H03F2203/45496

摘要： There is provided a highly linear differential amplifying circuit. The highly linear differential amplifying circuit includes: a differential amplifying unit including a main differential amplifying unit having a differential pair of transistors for amplifying a difference of two input signals and an auxiliary amplifying unit connected in parallel with the main differential amplifying unit, wherein second-order derivatives of transconductances of the main differential amplifying unit and the auxiliary differential amplifying unit are properly set to have an offset; and a source degeneration resistor unit including a first source degeneration resistor to a fourth source degeneration resistor. Accordingly, the linearity of the differential amplifying circuit is improved at a wide output power region.

摘要翻译： 提供了高度线性的差分放大电路。 高线性差分放大电路包括：差分放大单元，包括具有用于放大两个输入信号的差的晶体管的差分对的主差分放大单元和与主差分放大单元并联连接的辅助放大单元， 主差分放大单元和辅助差分放大单元的跨导的顺序导数被适当地设置为具有偏移; 以及源极退化电阻器单元，其包括到第四源极退变电阻器的第一源极退变电阻器。 因此，在宽的输出功率区域，差分放大电路的线性度得到改善。