公开(公告)号：US20250030430A1

公开(公告)日：2025-01-23

申请号：US18666180

申请日：2024-05-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Heewook Shin ,  Jaehyuk Lee ,  Junho Boo ,  Seunghoon Lee ,  Youngjae Cho ,  Michael Choi ,  Jinwook Burm ,  Gilcho Ahn

IPC: H03M1/06

Abstract: Provided is an analog-to-digital converter and a voltage offset correction method thereof. The analog-to-digital converter may include a digital-to-analog converter (DAC) configured to generate a first comparison voltage, a comparison circuit configured to output a first comparison result signal based on a result of comparing the first comparison voltage with a second comparison voltage, and a control circuit configured to control the DAC and output an output signal, wherein the DAC may include a correction circuit configured to generate a correction voltage by selectively switching switches connected to terminals to which a plurality of reference voltages are applied, and correct a voltage offset of the comparison circuit based on the correction voltage.

公开(公告)号：US12057844B2

公开(公告)日：2024-08-06

申请号：US18176371

申请日：2023-02-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sangheon Lee ,  Heewook Shin ,  Heejune Lee ,  Jungho Lee ,  Youngjae Cho ,  Michael Choi

IPC: H03K5/135 ,  G01R19/25 ,  H03K5/00

CPC classification number: H03K5/135 ,  G01R19/2513 ,  H03K2005/00052

Abstract: A digital droop detector for detecting whether a droop occurs in a power supply voltage, may include processing circuitry configured to, detect a voltage level change of a power supply voltage in response to a clock signal, the detecting the voltage level change including converting the detected voltage level change into a first code, correct at least one nonlinearity included in the first code, the correcting including converting the first code into a second code and a target range, and adjust a delay magnitude of the clock signal based on the second code.