公开(公告)号：US10014873B1

公开(公告)日：2018-07-03

申请号：US15714230

申请日：2017-09-25

Applicant: NXP B.V.

Inventor： Robert van Veldhoven ,  Rui Quan

IPC: H03M1/66 ,  H03M1/06 ,  H03M1/78

CPC classification number: H03M1/0604 ,  H03M1/066 ,  H03M1/765 ,  H03M1/785

Abstract: A digital-to-analog converter (DAC) includes a plurality of resistive elements connected together in series to form a ring of resistive elements. A node is formed by each of the connections of adjacent resistive elements of the ring. Groups of parallel-connected switches are coupled to each node. A first switch of the group of switches is for selectively coupling a first power supply voltage terminal to the node. A second switch of the group of switches is for selectively coupling a second power supply voltage to the node. A third switch of the group of switches is for selectively coupling an output terminal to the node. A differential or single-ended analog output may be provided. Mismatch induced error is removed using a mismatch error shaping technique that shapes the errors outside a pass-band.