发明申请
- 专利标题: RESISTOR-BASED SIGMA-DELTA DAC
- 专利标题(中): 基于电阻的SIGMA-DELTA DAC
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申请号: US13995156申请日: 2011-09-30
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公开(公告)号: US20130271305A1公开(公告)日: 2013-10-17
- 发明人: Hyung Seok Kim , Yee W. Li , Ashoke Ravi , Hasnain Lakdawala
- 申请人: Hyung Seok Kim , Yee W. Li , Ashoke Ravi , Hasnain Lakdawala
- 国际申请: PCT/US11/54297 WO 20110930
- 主分类号: H03M3/00
- IPC分类号: H03M3/00 ; H03M1/78
摘要:
An inverter-driven resistor-ladder digital-to-analog (DAC) converter includes a resistor-ladder network that comprises a resistor for each bit signal of a multi-bit input signal. Each resistor of the resistor-ladder network comprises an input end and an output end. The input end of each resistor is coupled to a corresponding bit signal of the multi-bit input signal, and the output end of each resistor is coupled to an output node of the resistor-ladder network. An output voltage is generated at the output node that is based on the multi-bit input signal. In one exemplary embodiment, the multi-bit input signal is a sigma-delta (ΣΔ) modulated multi-bit input signal. In another exemplary embodiment, resistance values of the resistors of the resistor-ladder network are related by a binary weighting. In still another exemplary embodiment, resistance values of the resistors of the resistor-ladder network are substantially equal.
公开/授权文献
- US08941520B2 Resistor-based Σ-ΔDAC 公开/授权日:2015-01-27
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