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Demystifying Delta-Sigma ADCs


关键词: Delta-Sigma, analog to digital converters, ADCs, A to D, A/D, oversampling, noise shaping, decimation, decimation filters, MAX1402, thermocouple measurement, RTD, resistance temperature detectors, 4-20mA, 4-20mA trnasmitter


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.


Demystifying Delta-Sigma ADCs.pdf