公开(公告)号：US20250103081A1

公开(公告)日：2025-03-27

申请号：US18888049

申请日：2024-09-17

Applicant: STMicroelectronics International N.V.

Inventor： Jean-Pierre BLANC ,  Sarah VERHAEREN

IPC: G05F3/26

Abstract: The present description concerns a correction circuit for a bandgap circuit comprising a first bipolar transistor and a second bipolar transistor, the bandgap circuit being configured to deliver a temperature-stable DC voltage based on the first and second bipolar transistors, the correction circuit being configured to generate a correction current equal to a difference in the base currents of said first and second transistors, and inject the correction current on the emitter of one of said first and second bipolar transistors to correct an error on the temperature-stable voltage resulting from a current gain difference between said first and second bipolar transistors.