公开(公告)号：US20230163736A1

公开(公告)日：2023-05-25

申请号：US18058584

申请日：2022-11-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyunghwan MIN ,  Jahoon JIN ,  Soomin LEE ,  Sangho KIM ,  Jihoon LIM ,  Sodam JU ,  Hyunsu CHEA

IPC: H03F3/45

CPC classification number: H03F3/45179 ,  H03F2203/45116 ,  H03F2203/45222 ,  H03F2203/45601

Abstract: A self-bias signal generating circuit includes a differential amplifier circuit including a current source transistor. The differential amplifier circuit is configured to amplify at least a pair of differential input signals to generate at least a pair of differential output signals, and the differential amplifier circuit is configured to generate an output common-mode signal based on the at least a pair of differential output signals. The self-bias signal generating circuit includes a feedback loop circuit configured to adjust a voltage level of the output common-mode signal to generate a self-bias signal, and the feedback loop circuit is configured to provide the self-bias signal to the differential amplifier circuit. The self-bias signal is applied to a gate terminal of the current source transistor.