公开(公告)号：US20220390513A1

公开(公告)日：2022-12-08

申请号：US17832535

申请日：2022-06-03

Applicant: Tektronix, Inc.

Inventor： Shane A. Hazzard ,  Ajaiey Kumar Sharma ,  Timothy E. Bieber ,  John Marrinan ,  Andrew McCann ,  Pieter Christiaan Seidel ,  Josiah A. Bartlett

IPC: G01R31/317

Abstract: An input selector for electrically connecting one of a plurality of test signals from a device under test to a test and measurement instrument includes a multiplexer having multiple inputs, each of the multiple inputs coupled to a different one of the plurality of test signals from the device under test, and having an output of a selected one of the multiple inputs, and an amplifier coupled to the output of the multiplexer for amplifying the selected test signal of the device under test before being sent as an output of the input selector to the test and measurement instrument. In alternative architectures, two or more amplifiers are coupled to the plurality of test signals, and the multiplexer selects an output of one of the two amplifiers to pass to a measurement instrument for testing.