Invention Grant
- Patent Title: Wideband digital to analog converter with built-in load attenuator
- Patent Title (中): 宽带数模转换器，内置负载衰减器
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Application No.: US12686998Application Date: 2010-01-13
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Publication No.: US08169353B2Publication Date: 2012-05-01
- Inventor: Dongwon Seo , Ganesh R Saripalli , Tongyu Song , Shahin Mehdizad Taleie , Derui Kong
- Applicant: Dongwon Seo , Ganesh R Saripalli , Tongyu Song , Shahin Mehdizad Taleie , Derui Kong
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM, Incorporated
- Current Assignee: QUALCOMM, Incorporated
- Current Assignee Address: US CA San Diego
- Agent William M. Hooks
- Main IPC: H03M1/66
- IPC: H03M1/66
Abstract:
A circuit for digital-to-analog conversion is described. The circuit includes a digital-to-analog converter (DAC). The DAC includes a double cascaded current source and a differential current-mode switch (DCMS). The circuit further includes a direct current (DC) offset stage. The circuit also includes a load attenuator. The double cascaded current source may be between the DCMS and a rail voltage.
Public/Granted literature
- US20110074615A1 WIDEBAND DIGITAL TO ANALOG CONVERTER WITH BUILT-IN LOAD ATTENUATOR Public/Granted day:2011-03-31
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