公开(公告)号：US20240288894A1

公开(公告)日：2024-08-29

申请号：US18175208

申请日：2023-02-27

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Chienyu HUANG ,  Peng CAO ,  Kevin SCOONES ,  Vishnu Vardhan RAVINUTHULA ,  Bumkil LEE

IPC: G05F3/18 ,  G05F1/46

CPC classification number: G05F3/18 ,  G05F1/468

Abstract: In an example, a system includes a buried Zener diode having a first terminal coupled to a voltage terminal. The system also includes a first resistor having a first terminal coupled to a second terminal of the buried Zener diode. The system includes a second resistor having a first terminal coupled to a second terminal of the first resistor. The system also includes a first transistor having a control terminal coupled to the first terminal of the second resistor. The system includes a second transistor having a control terminal coupled to a second terminal of the second resistor and an emitter coupled to an emitter of the first transistor. The system also includes a resistor network coupled to the second terminal of the first resistor, where the resistor network is configured to produce a reference voltage.