公开(公告)号：US10998915B2

公开(公告)日：2021-05-04

申请号：US16321484

申请日：2016-09-02

Applicant: INTEL IP CORPORATION

Inventor： Jose Pedro Diogo Faisca Moreira ,  Joerg Fuhrmann ,  Patrick Ossmann ,  Harald Pretl

IPC: H03M1/66 ,  H03M1/74 ,  H04B1/04

Abstract: A digital-to-analog converter circuit including one or more digital-to-analog converter cells and a separate voltage protection circuit connected by a common output node. A first digital-to-analog converter cell includes a first transistor which is configured to be switched to a conductive state when the first digital-to-analog converter cell is activated. A first terminal of the first transistor is coupled to a defined potential, wherein a second terminal of the first transistor is coupled to a common output node of the one or more digital-to-analog converter cells. The digital-to-analog converter circuit further includes a voltage protection circuit coupled between the common output node of the one or more digital-to-analog converter cells and an output node of the digital-to-analog converter circuit to regulate a voltage between the common output node and the defined potential.