- 专利标题: TECHNIQUES FOR HIGH-SPEED EXCESS LOOP DELAY COMPENSATION IN SIGMA-DELTA ANALOG-TO-DIGITAL CONVERTERS
-
申请号: US17158913申请日: 2021-01-26
-
公开(公告)号: US20220239314A1公开(公告)日: 2022-07-28
- 发明人: Chenming ZHANG , Lucien Johannes BREEMS , Muhammed BOLATKALE
- 申请人: NXP B.V.
- 申请人地址: NL Eindhoven
- 专利权人: NXP B.V.
- 当前专利权人: NXP B.V.
- 当前专利权人地址: NL Eindhoven
- 主分类号: H03M3/00
- IPC分类号: H03M3/00
摘要:
The present disclosure relates generally to techniques for continuous-time sigma-delta analog-to-digital converter (ADC). The continuous-time sigma-delta ADC may include a feed-forward capacitor in parallel with a current-steering excess loop delay (ELD) digital-to-analog converter (DAC), and by creating a zero in a transfer function of a Gm cell, both an ELD feedback loop settling and a main feedback loop may be recovered. As a result, the performance and stability of the continuous-time sigma-delta ADC can be achieved. Additionally, a summation node in the continuous-time sigma-delta ADC may offer flexibility in the architecture design of the continuous-time sigma-delta ADC.
公开/授权文献
信息查询