公开(公告)号：US20220100221A1

公开(公告)日：2022-03-31

申请号：US17033571

申请日：2020-09-25

Applicant: Intel Corporation

Inventor： You Li ,  David Duarte ,  Yongping Fan

IPC: G05F3/30 ,  G05F3/26

Abstract: A low power hybrid reverse (LPHR) bandgap reference (BGR) and digital temperature sensor (DTS) or a digital thermometer, which utilizes subthreshold metal oxide semiconductor (MOS) transistor and the PNP parasitic Bi-polar Junction Transistor (BJT) device to form a reverse BGR that serves as the base for configurable BGR or DTS operating modes. The LPHR architecture uses low-cost MOS transistors and the standard parasitic PNP device. Based on a reverse bandgap voltage, the LPHR can work as a configurable BGR. By comparing the configurable BGR with the scaled base-emitter voltage, the circuit can also perform as a DTS with a linear transfer function with single-temperature trim for high accuracy.

公开(公告)号：US12061493B2

公开(公告)日：2024-08-13

申请号：US17033571

申请日：2020-09-25

Applicant: Intel Corporation

Inventor： You Li ,  David Duarte ,  Yongping Fan

IPC: G05F3/30

CPC classification number: G05F3/30

Abstract: A low power hybrid reverse (LPHR) bandgap reference (BGR) and digital temperature sensor (DTS) or a digital thermometer, which utilizes subthreshold metal oxide semiconductor (MOS) transistor and the PNP parasitic Bi-polar Junction Transistor (BJT) device to form a reverse BGR that serves as the base for configurable BGR or DTS operating modes. The LPHR architecture uses low-cost MOS transistors and the standard parasitic PNP device. Based on a reverse bandgap voltage, the LPHR can work as a configurable BGR. By comparing the configurable BGR with the scaled base-emitter voltage, the circuit can also perform as a DTS with a linear transfer function with single-temperature trim for high accuracy.