公开(公告)号：US20240146256A1

公开(公告)日：2024-05-02

申请号：US18406864

申请日：2024-01-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Jing ,  Chen Tan ,  Dan Li

IPC: H03F3/08 ,  H03F1/34

CPC classification number: H03F3/082 ,  H03F1/342 ,  H03F2200/144 ,  H03F2200/441

Abstract: Embodiments of this application disclose a trans-impedance amplifier and a trans-impedance amplifier control method that are used in the field of circuit technologies. A trans-impedance amplifier TIA includes an inverting amplification circuit and a voltage clamping circuit. The inverting amplification circuit is connected in parallel to the voltage clamping circuit. The inverting amplification circuit includes a first PMOS transistor and a first NMOS transistor that have a common gate. A source of the first PMOS transistor is connected to a drain of the first NMOS transistor. The voltage clamping circuit includes a second PMOS transistor and a second NMOS transistor that have a common gate. Gates of the two transistors are connected to an input end of the TIA. A source of the second NMOS transistor and a drain of the second PMOS transistor are connected to an output end of the TIA.