公开(公告)号：US20240297659A1

公开(公告)日：2024-09-05

申请号：US18663352

申请日：2024-05-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Moo Yeol CHOI ,  Young Hyun YOON ,  Hyun Sun SHIM ,  Myung-Jin LEE

IPC: H03M1/08

CPC classification number: H03M1/08

Abstract: A noise filtering circuit, a digital to analog converter and an electronic device are provided. The noise filtering circuit comprises a first amplifier configured to receive a bias voltage at a first input terminal, receive a bias output voltage at a second input terminal though a feedback path, and compensate for a difference between the bias voltage and the bias output voltage; a first transistor connected to an output of the first amplifier and having a gate to which an off-voltage is applied; a first capacitor connected to the first transistor; a second capacitor connected to the output of the first amplifier; a second transistor connected to the second capacitor and having a gate to which an off-voltage is applied, and a second amplifier having an input terminal connected to the first capacitor and a second input terminal connected to the second transistor.

公开(公告)号：US20230188147A1

公开(公告)日：2023-06-15

申请号：US17815678

申请日：2022-07-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Moo Yeol CHOI ,  Young Hyun YOON ,  Hyun Sun SHIM ,  Myung-Jin LEE

IPC: H03M1/08

CPC classification number: H03M1/08

Abstract: A noise filtering circuit, a digital to analog converter and an electronic device are provided. The noise filtering circuit comprises a first amplifier configured to receive a bias voltage at a first input terminal, receive a bias output voltage at a second input terminal though a feedback path, and compensate for a difference between the bias voltage and the bias output voltage; a first transistor connected to an output of the first amplifier and having a gate to which an off-voltage is applied; a first capacitor connected to the first transistor; a second capacitor connected to the output of the first amplifier; a second transistor connected to the second capacitor and having a gate to which an off-voltage is applied, and a second amplifier having an input terminal connected to the first capacitor and a second input terminal connected to the second transistor.