公开(公告)号：US20240288890A1

公开(公告)日：2024-08-29

申请号：US18173144

申请日：2023-02-23

Applicant: Texas Instruments Incorporated

Inventor： Sowmya Sankaranarayanan ,  Orlando Lazaro ,  Kevin Scoones ,  Avinash Bhat

IPC: G05F1/46 ,  G05F1/575 ,  G05F3/30

CPC classification number: G05F1/465 ,  G05F1/575 ,  G05F3/30

Abstract: In one example, an apparatus comprises a voltage reference circuit. The voltage reference circuit has a voltage reference terminal and includes a first circuit, a first semiconductor junction device, and a second semiconductor junction device coupled between the voltage reference terminal and a ground terminal. The first circuit is configured to generate a first voltage that increases with a temperature. The first semiconductor junction device is configured to generate a second voltage that decreases with the temperature. The second semiconductor junction device is configured to generate a third voltage that decreases with the temperature. The voltage reference circuit is configured to generate a fourth voltage between the voltage reference terminal and the ground terminal based on a sum of the first voltage and a combination of the second and third voltages.