Invention Application
US20150171889A1 LOW POWER ANALOG-TO-DIGITAL CONVERTER FOR SENSING GEOPHONE SIGNALS
有权
用于感应地球信号的低功率模拟数字转换器
- Patent Title: LOW POWER ANALOG-TO-DIGITAL CONVERTER FOR SENSING GEOPHONE SIGNALS
- Patent Title (中): 用于感应地球信号的低功率模拟数字转换器
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Application No.: US14636417Application Date: 2015-03-03
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Publication No.: US20150171889A1Publication Date: 2015-06-18
- Inventor: John L. Melanson , Rahul Singh , Prashanth Drakshapalli , Dale Brummel , Stephen T. Hodapp
- Applicant: Cirrus Logic, Inc.
- Main IPC: H03M3/00
- IPC: H03M3/00 ; G01V1/18
Abstract:
A low power analog-to-digital converter configured to sense sensor signals may include a loop filter and a feedback digital-to-analog converter. The loop filter may have a loop filter input configured to receive an input current signal from a sensor and generate an output signal responsive to the input current signal. The feedback digital-to-analog converter may have a feedback output configured to generate a current-mode or charge-mode feedback output signal responsive to the output signal, the feedback output coupled to the loop filter input in order to combine the input current signal and the feedback output signal at the input.
Public/Granted literature
- US09335429B2 Low power analog-to-digital converter for sensing geophone signals Public/Granted day:2016-05-10
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