公开(公告)号：US20190081601A1

公开(公告)日：2019-03-14

申请号：US16015657

申请日：2018-06-22

Applicant: Analog Devices Global Unlimited Company

Inventor： Jonathan Ephraim David Hurwitz ,  George Redfield Spalding, JR. ,  Seyed Amir Ali Danesh

IPC: H03F3/45 ,  H03K17/0812 ,  H03M1/46 ,  H03K17/30 ,  H03K17/56 ,  H04B1/04

Abstract: Differential sampling circuits may be adversely affected by changes in common mode voltage. Changes in the common mode voltage may alter the on resistance of transistor switches which it turn may mean that small signal changes are not correctly observed against a bigger common mode signal. The present disclosure relates to a way of improving the ability to resolve small differential signal changes by varying the supply or drive voltage to a component to compensate for common mode voltage changes.