公开(公告)号：US20090195313A1

公开(公告)日：2009-08-06

申请号：US12105159

申请日：2008-04-17

申请人： Rikky MULLER ,  David Hall WHITNEY

发明人： Rikky MULLER ,  David Hall WHITNEY

IPC分类号： H03F3/45

CPC分类号： H03F3/45183 ,  H03F3/45197 ,  H03F2203/45292 ,  H03F2203/45352 ,  H03F2203/45454 ,  H03F2203/45466 ,  H03F2203/45471 ,  H03F2203/45491 ,  H03F2203/45492 ,  H03F2203/45644

摘要： A circuit includes a pair of input transistors configured as a differential pair and having input terminals configured to receive an input voltage. The circuit also includes a first current source connected to and configured to provide a first tail current to the pair of input transistors, the first tail current being a class-A current having a non-zero quiescent value. The circuit also includes a second current source connected to and configured to provide a second tail current to the pair of input transistors, the second tail current being a class-B current having a zero quiescent value and a non-zero non-quiescent value. The second current source is configured to provide the second tail current as a function of the input voltage.

摘要翻译： 电路包括配置为差分对并且具有被配置为接收输入电压的输入端的一对输入晶体管。 电路还包括连接到并被配置为向一对输入晶体管提供第一尾电流的第一电流源，第一尾电流是具有非零静态值的A类电流。 电路还包括连接到并被配置为向一对输入晶体管提供第二尾电流的第二电流源，第二尾电流是具有零静态值和非零非静态值的B类电流。 第二电流源被配置为提供作为输入电压的函数的第二尾电流。