公开(公告)号：US20240159819A1

公开(公告)日：2024-05-16

申请号：US17987379

申请日：2022-11-15

Applicant: STMicroelectronics S.r.l.

Inventor： Nicola Errico ,  Alessandro Cannone ,  Enrico Ferrara ,  Luigi Piscitelli

IPC: G01R31/28 ,  G01R31/3167 ,  G01R31/319

CPC classification number: G01R31/2834 ,  G01R31/3167 ,  G01R31/31926

Abstract: A circuit includes: first analog-to-digital converters (ADCs) configured to be coupled to respective ones of first sensors; a first multiplexer (MUX) coupled to output terminals of the first ADCs; a second MUX configured to be coupled to second sensors which are redundant sensors for the first sensors; a second ADC coupled to an output terminal of the second MUX, the first MUX and the second MUX being controlled by a selection signal; a first checker circuit configured to compare a first data at an output terminal of the first MUX with a second data at an output terminal of the second ADC; and a plurality of switches coupled between respective ones of the input terminals of the second MUX and a reference voltage node.