发明授权
- 专利标题: Digital-to-analog converter switching circuitry
- 专利标题(中): 数模转换器开关电路
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申请号: US10076087申请日: 2002-02-14
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公开(公告)号: US06639534B2公开(公告)日: 2003-10-28
- 发明人: Ramin Khoini-Poorfard , Douglas R. Frey
- 申请人: Ramin Khoini-Poorfard , Douglas R. Frey
- 主分类号: H03M166
- IPC分类号: H03M166
摘要:
A digital-to-analog conversion circuit includes first and second DACs. Switch circuitry couples a selected output of only one of the DACs to an output node at any given time. In one embodiment, a second output of the first DAC is coupled to the first output of the second DAC at a common node. The first output of the first DAC is coupled to a first switch node and a second output of the second DAC is coupled to a second switch node. A first switch couples the common node to the first switch node in response to a first switch signal. A second switch couples the common node to the second switch node in response to a second switch signal. The switch signals ensure that the common node is coupled through the first and second switches to only one of the first and second switch nodes at any given time.
公开/授权文献
- US20030151533A1 DIGITAL-TO-ANALOG CONVERTER SWITCHING CIRCUITRY 公开/授权日:2003-08-14
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