公开(公告)号：US10014899B2

公开(公告)日：2018-07-03

申请号：US15211782

申请日：2016-07-15

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Robert Floyd Payne ,  Lambert Jacob Helleman

IPC: H04B1/40 ,  G01R31/28 ,  H04B17/00 ,  H04L7/02

CPC classification number: H04B1/40 ,  G01R31/2884 ,  G01R31/3004 ,  G01R31/3016 ,  G01R31/31711 ,  H04B17/00 ,  H04L7/02

Abstract: In described examples of a device with built-in-self-test, a multiplexer has at least first and second input terminals and is coupled to receive a first input signal at the first input terminal, a second input signal at the second input terminal, and selection signals. Also, the multiplexer is coupled to output: the first input signal in response to a first combination of the selection signals; the second input signal in response to a second combination of the selection signals; and an analog summation of the first and second input signals in response to a third combination of the selection signals.