Invention Grant
US07671774B2 Analog-to-digital converter with integrator circuit for overload recovery
失效
具有集成电路的模数转换器,用于过载恢复
- Patent Title: Analog-to-digital converter with integrator circuit for overload recovery
- Patent Title (中): 具有集成电路的模数转换器,用于过载恢复
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Application No.: US12117357Application Date: 2008-05-08
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Publication No.: US07671774B2Publication Date: 2010-03-02
- Inventor: Brandt Braswell
- Applicant: Brandt Braswell
- Applicant Address: US TX Austin
- Assignee: Freescale Semiconductor, Inc.
- Current Assignee: Freescale Semiconductor, Inc.
- Current Assignee Address: US TX Austin
- Agency: Ingrassia, Fisher & Lorenz, P.C.
- Main IPC: H03M3/00
- IPC: H03M3/00

Abstract:
Apparatus and methods are provided for overload recovery in high order sigma-delta feedback topologies. An apparatus is provided for an analog-to-digital converter. The analog-to-digital converter comprises a first integrator having a first input, wherein the first integrator is configured to produce a first integrated output. A first switched resistance element is coupled between the first input and the first integrated output, wherein the first integrated output is altered when the first switched resistance element is activated. A quantizer is coupled to the first integrated output, the quantizer having a digital output wherein the quantizer converts the first integrated output to a digital value. A digital-to-analog converter is coupled between the digital output and the first input, wherein the digital-to-analog converter converts the digital value to an analog value.
Public/Granted literature
- US20090278719A1 ANALOG-TO-DIGITAL CONVERTER WITH INTEGRATOR CIRCUIT FOR OVERLOAD RECOVERY Public/Granted day:2009-11-12
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