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专利名称：Sigma-delta modulator with trimmed
reference voltage for quantizer
发明人：Peijun Wang,Robert S. Jones申请号：US13748796申请日：20130124公开号：US08791847B1公开日：20140729
专利附图：
摘要：A sigma delta modulator includes a first circuit that receives an analog signaland provides an intermediate signal and a first quantizer signal and further includes a firstquantizer that receives the first quantizer signal and provides a first quantizer output.
Also included are a second input circuit that receives the intermediate signal and providesa second quantizer signal and a second quantizer that receives the second quantizersignal and provides a second quantizer output. The first quantizer includes a
programmable circuit having a first reference and a negative of the first reference, a firstcomparator having a first input coupled to the first quantizer signal, a second inputcoupled to the first reference and a second comparator having a second input coupled tothe first quantizer signal a second input coupled to the negative. The first and secondcomparators have outputs that form the output of the first quantizer.
申请人：Peijun Wang,Robert S. Jones
地址：Austin TX US,Austin TX US
国籍：US,US
代理人：Mary Jo Bertani,James L. Clingan, Jr.
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