Transcription of RTD Instrumentation for Temperature Sensing
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RTD Instrumentation for Temperature Sensing
2008-2013 Microchip Technology 1AN1154 INTRODUCTIONP recision RTD (Resistive Temperature Detector) Instrumentation is key for high-performance thermalmanagement applications. This application note showshow to use a high resolution Delta-Sigma Analog-to-Digital Converter, and two resistors to measure RTDresistance ratiometrically. A C accuracy and C measurement resolution can be achievedacross the RTD Temperature range of -200 C to+800 C with a single point calibration. A high resolution Delta-Sigma ADC can serve well forhigh-performance thermal management applicationssuch as industrial or medical Instrumentation .
2008-2013 Microchip Technology Inc. DS00001154B-page 1 AN1154 INTRODUCTION Precision RTD (Resistive Temperature Detector) instrumentation is key for high-performance thermal
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