公开(公告)号：US09006638B2

公开(公告)日：2015-04-14

申请号：US13443315

申请日：2012-04-10

Applicant: Tai-Ping Sun ,  Yi-Chuan Lu ,  I-Tin Liu

Inventor： Tai-Ping Sun ,  Yi-Chuan Lu ,  I-Tin Liu

IPC: H03F3/08 ,  H01J40/14 ,  H03K17/78 ,  H03F11/00

CPC classification number: H03F3/08

Abstract: A capacitive transimpedance amplifier for a detector unit capable of generating first and second detection currents comprises: a read-out circuit including an integration capacitor coupled between an input node connected to the detector unit, and a common node between first and second transistors connected in series, and a sampling and holding unit coupled between the first common node and an output node for sampling and holding a voltage at the first common node; and a switch unit connected to control ends of the first and second transistors and the input node, and operable between a first state, where the first detection current is read out, and a second state, where the second detection current is read out.

Abstract translation: 一种能够产生第一和第二检测电流的检测器单元的电容互阻抗放大器包括：读出电路，包括耦合在连接到检测器单元的输入节点和串联连接的第一和第二晶体管之间的公共节点之间的积分电容器 以及耦合在所述第一公共节点和输出节点之间的采样和保持单元，用于在所述第一公共节点处采样和保持电压; 以及开关单元，连接到控制第一和第二晶体管和输入节点的端部，并且可在读出第一检测电流的第一状态与读出第二检测电流的第二状态之间操作。

公开(公告)号：US20130106505A1

公开(公告)日：2013-05-02

申请号：US13443315

申请日：2012-04-10

Applicant: Tai-Ping SUN ,  Yi-Chuan LU ,  I-Tin LIU

Inventor： Tai-Ping SUN ,  Yi-Chuan LU ,  I-Tin LIU

IPC: H03F11/00

CPC classification number: H03F3/08

Abstract: A capacitive transimpedance amplifier for a detector unit capable of generating first and second detection currents comprises: a read-out circuit including an integration capacitor coupled between an input node connected to the detector unit, and a common node between first and second transistors connected in series, and a sampling and holding unit coupled between the first common node and an output node for sampling and holding a voltage at the first common node; and a switch unit connected to control ends of the first and second transistors and the input node, and operable between a first state, where the first detection current is read out, and a second state, where the second detection current is read out.

Abstract translation: 一种能够产生第一和第二检测电流的检测器单元的电容互阻抗放大器包括：读出电路，包括耦合在连接到检测器单元的输入节点和串联连接的第一和第二晶体管之间的公共节点之间的积分电容器 以及耦合在所述第一公共节点和输出节点之间的采样和保持单元，用于在所述第一公共节点处采样和保持电压; 以及开关单元，连接到控制第一和第二晶体管和输入节点的端部，并且可在读出第一检测电流的第一状态与读出第二检测电流的第二状态之间操作。