R.S. Ashwin Kumar

Assistant Professor,

Dept. of Electrical Engg.,

IIT Kanpur.


Solid-state circuit design lab



Office: WL 120

Tel: +91-512-259-2165

email: ashwinrs@iitk.ac.in

Journal papers

  • R. S. Ashwin Kumar , N. Krishnapura, and P. Banerjee "Analysis and Design of a Discrete-Time Delta-Sigma Modulator Using a Cascoded Floating-Inverter-Based Dynamic Amplifier," IEEE Journal of Solid-State Circuits (IEEE JSSC). (vol. 57, no. 11, pp. 3384-3395, Nov. 2022, doi: 10.1109/JSSC.2022.3171790). (paper)

  • R. S. Ashwin Kumar and N. Krishnapura, "Multi-channel Analog-to-Digital Conversion Using a Delta-Sigma Modulator Without Reset and a Modulated Sinc-Sum Filter," IEEE Transactions on Circuits and Systems I: Regular Papers (TCAS-I). (doi: 10.1109/TCSI.2021.3094679). (paper)

    • Also presented at the IEEE International Symposium on Integrated Circuits and Systems (ISICAS) 2021.

  • Chithra, A. Narayanan, R. S. Ashwin Kumar and N. Krishnapura, "Auto-zeroing Static Phase Offset in DLLs using a Digitally Programmable Sensing Circuit", IEEE Transactions on Circuits and Systems II: Express Briefs (TCAS-II), vol. 68, no. 6, pp. 1788-1792, June 2021. (paper)

  • R. S. Ashwin Kumar and N. Krishnapura, "Multi-Channel Analog-to-Digital Conversion Techniques Using a Continuous-time Delta-Sigma Modulator Without Reset," IEEE Transactions on Circuits and Systems I: Regular Papers (TCAS-I), vol. 67, no. 11, pp. 3693-3703, Nov. 2020. (paper)

    • Also presented at the IEEE International Symposium on Integrated Circuits and Systems (ISICAS) 2020.

  • R. S. Ashwin Kumar, D. Behera and N. Krishnapura, "Reset-Free Memoryless Delta–Sigma Analog-to-Digital Conversion," IEEE Transactions on Circuits and Systems I: Regular Papers (TCAS-I), vol. 65, no. 11, pp. 3651-3661, Nov. 2018, doi: 10.1109/TCSI.2018.2854707. (paper)

    • Also presented at the IEEE International Symposium on Integrated Circuits and Systems (ISICAS) 2018.


Conference papers

  • R. S. Ashwin Kumar, ""Using the Miller Theorem to Analyze Two-Stage Miller-Compensated Opamps", IEEE International Symposium on Circuits and Systems (ISCAS) 2022.

  • R. S. Ashwin Kumar, "A Discrete-Time Delta-Sigma Modulator With Relaxed Driving Requirements And Improved Anti-Aliasing", IEEE International Symposium on Circuits and Systems (ISCAS) 2021,
    doi: 10.1109/ISCAS51556.2021.9401336.     (paper)

  • R. S. Ashwin Kumar and N. Krishnapura, "A 2-Channel ADC Using a Delta-Sigma Modulator Without Reset and a Modulated-Sinc-Sum Filter", IEEE European Solid-State Circuits Conference (ESSCIRC) 2019,
    doi: 10.1109/ESSCIRC.2019.8902610.     (paper)

  • R. S. Ashwin Kumar, D. Behera and N. Krishnapura, "A Low Power Multi-Channel Input Delta-Sigma ADC Without Reset,” IEEE International Conference on VLSI Design and International Conference on Embedded Systems (VLSID) 2017, doi:10.1109/VLSID.2017.85.


Patents

  • R. S. Ashwin Kumar and Nagendra Krishnapura, "Multi-Channel ADC Realization Using a Delta-Sigma Modulator Without Reset And a Modulated Sinc-Sum Filter", India patent application # 201941038076.

  • Chithra, A Narayanan, R. S. Ashwin Kumar, and N. Krishnapura, “Auto-Zeroing Static Phase Offset in DLLs Using a Digitally Programmable Sensing Circuit”, India patent application #202041057083.