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@article{188119,
        author = {Amulya K S and Ann Maria Mathew and Charumitha S and Asst Professor Niveditha V K},
        title = {Delta Sigma Digital to Analog Conversion: A Research Paper},
        journal = {International Journal of Innovative Research in Technology},
        year = {2025},
        volume = {12},
        number = {7},
        pages = {658-660},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=188119},
        abstract = {A popular method for high-resolution analog-to-digital and digital-to-analog conversion is delta-sigma modulation. In order to achieve high accuracy following digital filtering or analog reconstruction, it oversamples the input signal and uses noise-shaping to drive quantization noise to higher frequencies. In this study, a realistic implementation of a Delta-Sigma modulator employing passive components, a function generator, IC 741 operational amplifiers, and the IC 7474 D flip-flop is presented. The design shows how to recover the analog waveform and generate a 1-bit pulse-density modulated (PDM) bitstream. Analysis is done on experimental waveforms that include the input signal, quantization error, output bitstream, and demodulated response. The findings validate Delta-Sigma modulation's operation and its use in sensors, audio converters, communication systems, and precision measurement equipment.},
        keywords = {Delta-Sigma modulation, ADC, DAC, quantization noise, oversampling, PDM, D-Flip-Flop.},
        month = {December},
        }