公开(公告)号：US09810584B2

公开(公告)日：2017-11-07

申请号：US14763613

申请日：2014-02-10

Applicant: Optis Circuit Technology, LLC

Inventor： Jukka Kohola ,  Marko Pessa

IPC: G01K7/00 ,  G01K7/01 ,  G05F3/30

CPC classification number: G01K7/01 ,  G01K7/015 ,  G05F3/30

Abstract: A temperature sensor includes two branches, each branch having at least a first transistor and a second transistor connected as diodes and cascaded, so that an emitter of the first transistor is connected to a collector of the second transistor of the same branch. The temperature source also includes a current source configured to provide a current to the two branches, and an analog-to-digital convertor. The analog-to-digital convertor is connected to capture a voltage between emitters of the first transistors or of the second transistors, and is configured to convert said voltage to a digital temperature signal.