Abstract: This in-depth article covers the theory behind a Delta-Sigma analog-to-digital converter (ADC). It specifically focuses on the difficult to understand key digital concepts of over-sampling, noise shaping, and decimation filtering. A description of new converter, the MAX1402, and several applications for Delta-Sigma converters are included. Maxim > App Notes > A/D and D/A Conversion/Sampling Circuits Temperature Sensors and Thermal Management Keywords: Delta-Sigma, analog to digital converters, ADCs, A to D, A/D, oversampling, noise shaping, decimation, decimation filters, Jan 31, 2003 MAX1402, thermocouple measurement, RTD, resistance temperature detectors, 4-20mA, 4-20mA trnasmitter APPLICATION NOTE 1870 Demystifying Delta-Sigma ADCs Abstract: This in-depth article covers the theory behind a Delta-Sigma analog-to-digital converter (ADC). It specifically focuses on the difficult to understand key digital concepts of over-sampling, noise shaping, and decimation filtering. A description of new converter, the MAX1402, and several applications for Delta-Sigma converters are included. Sigma-delta converters offer high re……