- 专利标题： CHOPPER-STABILIZATION METHOD AND APPARATUS FOR SIGMA DELTA MODULATORS
-
申请号： US13624802申请日： 2012-09-21
-
公开(公告)号： US20140085120A1公开(公告)日： 2014-03-27
- 发明人: Stanley Bo-Ting Wang , Derek K. Shaeffer
- 申请人： INVENSENSE, INC.
- 申请人地址： US CA Sunnyvale
- 专利权人： Invensense, Inc.
- 当前专利权人： Invensense, Inc.
- 当前专利权人地址： US CA Sunnyvale
- 主分类号： H03F1/38
- IPC分类号： H03F1/38 ; H03M3/02
摘要：
An embodiment of the invention includes an analog to digital converter including a sigma delta modulator that generates a feedback signal. The sigma delta modulator includes a quantizer responsive to an input signal and the feedback signal and generates a quantizer output. The sigma delta modulator further includes a chopper-stabilized amplifier that provides a reference signal to the sigma delta modulator, and the chopper-stabilized amplifier is stabilized according to a combination of a chopping signal and the quantizer output.
公开/授权文献
信息查询
