公开(公告)号：US20240201024A1

公开(公告)日：2024-06-20

申请号：US18537473

申请日：2023-12-12

Applicant: STMicroelectronics International N.V.

Inventor： Vincent BINET ,  Sebastien ORTET

IPC: G01K7/01

CPC classification number: G01K7/015

Abstract: An integrated circuit temperature sensor includes two diode-connected bipolar transistors having different sizes. A switching circuit selectively applies the base-emitter voltages generated across the two diode-connected bipolar transistors to the input of a buffer circuit. A control unit controls alternate switching by the switching circuit. An analog-to-digital converter has an input connected to an output of the buffer circuit. The analog-to-digital converter calculates a numeric value corresponding to a difference between the voltages generated across the two diode-connected bipolar transistors, this difference in voltages being proportional to absolute temperature.