公开(公告)号：US09806720B1

公开(公告)日：2017-10-31

申请号：US15288379

申请日：2016-10-07

Applicant: Analog Devices Global

Inventor： Bilal Tarik Cavus ,  Ozgun Serttek ,  Mehmet Bati

IPC: H03K19/20 ,  H01L27/06 ,  H03K19/0948 ,  H03K5/24

CPC classification number: H03K19/20 ,  H01L27/0605 ,  H01L27/0629 ,  H03K5/2481 ,  H03K19/0948

Abstract: An inverter based on a compound semiconductor uses a depletion mode transistor as the pull-up device, and a current source to bias the pull-up device. The current source is electrically coupled to a source terminal of the pull-up device. As a result, the current source continues to conduct current through the pull-up device, whether the inverter output is high or low, to ensure rapid response of the inverter.