Circuit, integrated circuit for sensing temperature and operating method thereof

Abstract

A circuit includes a parallel arrangement of a resistive device and a switching device, a current path including a first end coupled to a first terminal of the parallel arrangement, a current source configured to output a current, a switching circuit coupled between a second end of the current path and the current source, and a voltage sensing circuit including an output terminal and an input terminal coupled to the switching circuit. The circuit is configured to output a signal at the voltage sensing circuit output terminal based on a first voltage level output from the switching circuit concurrently with the current path conducting the current and the switching device being in an open state, and a second voltage level output from the switching circuit concurrently with the current path conducting the current and the switching device being in a closed state.

Images