TEMPERATURE-TO-DIGITAL CONVERTER
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专利名称：TEMPERATURE-TO-DIGITAL CONVERTER
发明人：Troy L. Stockstad
申请号：US10624394
申请日：20030722
公开号：US20050017889A1
公开日：
20050127
专利内容由知识产权出版社提供
专利附图：
摘要：A temperature to digital converter device is implemented by integrating a temperature sensor circuit into an analog-to-digital converter (ADC). Temperature-to-digital conversion is accomplished by first measuring a change in voltage (ΔV) across the junction of a diode when different current densities are forced through the junction. The
thus obtained ΔVis proportional to temperature. As part of the conversion processing,ΔVis multiplied by a fixed gain, and an offset voltage value is subtracted from ΔV. The multiplication and subtraction functions are performed by a switched-capacitor integrator in a delta-sigma ADC and the ADC itself operates as the temperature-to-digital converter device, eliminating the extra amplifier and/or capacitors required when the multiplication and/or subtraction function are performed outside the ADC. Alternately, other ADC topologies that include an integrator or gain amplifier, such as pipeline ADCs and cyclic ADCs may be used in place of the delta-sigma ADC.
申请人：Troy L. Stockstad
地址：Chandler AZ US
国籍：US
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