公开(公告)号：US20180323798A1

公开(公告)日：2018-11-08

申请号：US15947222

申请日：2018-04-06

申请人： Tony Yincai Liu ,  Dennis A. Dempsey

发明人： Tony Yincai Liu ,  Dennis A. Dempsey

IPC分类号： H03M1/78 ,  H03M1/08 ,  H03M1/70 ,  H03M1/76 ,  H03M1/68 ,  H03M1/10 ,  G05D3/14

CPC分类号： H03M1/808 ,  G05D3/1436 ,  H03M1/08 ,  H03M1/1057 ,  H03M1/68 ,  H03M1/682 ,  H03M1/70 ,  H03M1/765 ,  H03M1/785

摘要： Embodiments of the disclosure can provide digital-to-analog converter (DAC) termination circuits. A single or multiple parallel impedance networks can be coupled to a DAC to reduce the DAC's AC impedance, increase the DAC speed, and reduce the DAC settling time. The parallel impedance networks can be coupled to one or more of the DAC terminals in termination specific cases, or to nodes within the DAC. In an example, one-sided T-termination can be used with a single termination impedance path coupled in parallel with the DAC terminals, for reducing AC impedance at the DAC reference terminals, increasing speed, and reducing settling time. In an example, multiple impedance networks can be used in an H-bridge termination solution, which can be useful for high resolution DACs with or within a high voltage range.