公开(公告)号：US09000831B2

公开(公告)日：2015-04-07

申请号：US14073924

申请日：2013-11-07

Applicant: STMicroelectronics R&D (Shanghai) Co. Ltd.

Inventor： Fei Wang ,  KunKun Zheng

IPC: H03K17/687 ,  H03K17/10

CPC classification number: H03K17/102 ,  H03K2217/0054

Abstract: A pass gate circuit includes a first transistor coupled between an input node (receiving an input signal) and an output node (outputting an output signal). A second transistor is configured to generate a voltage difference in response to a bias current flowing therethrough, wherein that voltage difference is applied between a first gate of the first transistor and the output node. A differential amplifier functions to compare the voltage at the output node to a reference voltage and generate the bias current in response to that comparison.

Abstract translation: 通路电路包括耦合在输入节点（接收输入信号）和输出节点（输出输出信号）之间的第一晶体管。 第二晶体管被配置为响应于流过其中的偏置电流产生电压差，其中该电压差被施加在第一晶体管的第一栅极和输出节点之间。 差分放大器用于将输出节点处的电压与参考电压进行比较，并根据该比较产生偏置电流。