Integrated Circuits and Systems group, IIT Madras

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publications:start [2022/08/23 14:56]
nitin [2020]
publications:start [2024/12/28 03:09] (current)
nagendra
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 ====== Publications ====== ====== Publications ======
  
 +===== 2024 =====
 +  * C. Bheemisetti et al. "A 7-bit 1.75-GS/s 6.9-fJ/​conv.-step FoMw Loop-Unrolled Fully Asynchronous SAR ADC in 3-nm CMOS for a 224-Gb/s SerDes Receiver."​ IEEE Journal of Solid-State Circuits, [[https://​ieeexplore.ieee.org/​document/​10723273|doi:​ 10.1109/​JSSC.2024.3449115]].
 +  * Aswani Kumar Unnam, P. Banerjee and N. Krishnapura,​ "An 81.5dB SNDR, 2.5 MHz Bandwidth Incremental Continuous-Time Delta-Sigma ADC in 180 nm CMOS," IEEE Solid-State Circuits Letters, vol. 7, pp. 191-194, 2024. [[https://​ieeexplore.ieee.org/​abstract/​document/​10552799|doi:​ 10.1109/​LSSC.2024.3412634]].
 +  * A. Narayanan, A. Bhat and N. Krishnapura,​ "A 6 to 12-GHz Fractional-N Frequency Synthesizer With a Digital Technique to Counter Modulus-Dependent Feedback Divider Delays,"​ IEEE Journal of Solid-State Circuits, vol. 59, no. 9, pp. 2818-2830, Sept. 2024. [[https://​ieeexplore.ieee.org/​document/​10471881|doi:​ 10.1109/​JSSC.2024.3373620.]]
  
 +===== 2023 =====
 +  * P. Kumar and N. Krishnapura,​ "​Signal-Strength Detector Based on CMOS-Inverter Supply Current,"​ //IEEE Solid-State Circuits Letters//, [[https://​ieeexplore.ieee.org/​document/​10226425|doi:​ 10.1109/​LSSC.2023.3307361]].
 +  * Subha Sarkar, Rajat Agarwal, Nagendra Krishnapura,​ "​Bandpass filter and oscillator ICs with THD < -140dBc at 10Vppd for testing high-resolution ADCs," //2023 International Solid-State Circuits Conference//,​ San Francisco, USA, Feb. 2023. Accepted for presentation. [[https://​ieeexplore.ieee.org/​document/​10067771|doi:​ 10.1109/​ISSCC42615.2023.10067771]].
 +  * S. Ramprasath, M. Madhusudan et al., "A Generalized Methodology for Well Island Generation and Well-Tap Insertion in Analog/​Mixed-Signal Layouts,"​ //ACM Transactions on Design Automation of Electronic Systems//, [[https://​dl.acm.org/​doi/​10.1145/​3580477|doi:​ 10.1145/​3580477]].
 +  * J. Poojary, S. Ramprasath et al., "​Exploration of Design / Layout Tradeoffs for RF Circuits using ALIGN,"​ // IEEE Radio Frequency Integrated Circuits Symposium (RFIC)//, San Diego, USA, June 2023. [[https://​doi.org/​10.1109/​RFIC54547.2023.10186141|doi:​ 10.1109/​RFIC54547.2023.10186141]].
 +
 +===== 2022 =====
 +  * R. S. A. 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//, vol. 57, no. 11, pp. 3384-3395, Nov. 2022, [[https://​ieeexplore.ieee.org/​document/​9777856|doi:​ 10.1109/​JSSC.2022.3171790.]]
 +  * K. M. Vithagan, V. Sundaresha and J. Viraraghavan,​ "​Geometric Programming Approach to Glitch Minimization via Gate Sizing,"​ in IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 2022, doi: 10.1109/​TCAD.2022.3207970.
 +  * A. F. Davidson and J. Viraraghavan,​ "​Layout-Based Digital IC Course Projects in Large Classes: Implementation,​ Evaluation, and Plagiarism Detection,"​ in IEEE Transactions on Education, 2022, doi: 10.1109/​TE.2022.3192624. ​
 +  * S. Ramprasath, M. Madhusudan et al., "​Analog/​Mixed-Signal Layout Optimization using Optimal Well Taps," //​International Symposium on Physical Design//, Virtual Event Canada, Apr. 2022. [[https://​dl.acm.org/​doi/​10.1145/​3505170.3506728|doi:​ 10.1145/​3505170.3506728]]
 +  * T. Dhar, S. Ramprasath et al., "A Charge Flow Formulation for Guiding Analog/​Mixed-Signal Placement,"​ //Design, Automation & Test in Europe Conference & Exhibition (DATE)//, Antwerp, Belgium, Mar. 2022. [[https://​doi.org/​10.23919/​DATE54114.2022.9774621|doi:​ 10.23919/​DATE54114.2022.9774621]]
 + 
 ===== 2021 ===== ===== 2021 =====
   * R. S. A. 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//. Early access.   * R. S. A. 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//. Early access.
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   * S. Guddanti and Q. A. Khan, "A High Efficiency Fast Transient Zero Output Ripple Buck Converter Using Split PWM Controller with Inductor Mismatch Compensation,"​ //2021 IEEE International Symposium on Circuits and Systems (ISCAS)//, 2021.   * S. Guddanti and Q. A. Khan, "A High Efficiency Fast Transient Zero Output Ripple Buck Converter Using Split PWM Controller with Inductor Mismatch Compensation,"​ //2021 IEEE International Symposium on Circuits and Systems (ISCAS)//, 2021.
   * A. Chitnis, R. Chauhan, D. Kaur and Q. Khan, "A 0.75-5V, 15.8 nA with 1.8 μs Delay Supply Voltage Supervisor using Adaptively Biased Comparator and Sample & Hold Technique for IoT," //2021 IEEE Custom Integrated Circuits Conference (CICC)//, 2021.   * A. Chitnis, R. Chauhan, D. Kaur and Q. Khan, "A 0.75-5V, 15.8 nA with 1.8 μs Delay Supply Voltage Supervisor using Adaptively Biased Comparator and Sample & Hold Technique for IoT," //2021 IEEE Custom Integrated Circuits Conference (CICC)//, 2021.
 +  * A. Nallathambi,​ S. Sen, A. Raghunathan,​ N. Chandrachoodan,​ “Probabilistic spike propagation for efficient hardware implementation of spiking neural networks”,​ Frontiers in Neuroscience,​ vol 15, 2021
 +  * B. N. G. Koneru, N. Chandrachoodan and V. Vasudevan, "A Smoothed LASSO-Based DNN Sparsification Technique,"​ in IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 68, no. 10, pp. 4287-4298, Oct. 2021
 +  * B. Vijayakumar and J. Viraraghavan,​ "An Area-Efficient Word-Line Pitch-Aligned 8T SRAM Compatible Digital-to-Analog Converter,"​ 2021 IEEE International Symposium on Circuits and Systems (ISCAS), 2021, pp. 1-5, doi: 10.1109/​ISCAS51556.2021.9401131. (Accepted for poster)
  
 ===== 2020 ===== ===== 2020 =====
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   * A. D. Carmine, A. Santra, Q. Khan, "A current Efficient 10mA Analog-Assisted Digital Low Dropout Regulator with Dynamic Clock Frequency in 65nm CMOS," //2020 International Symposium on Circuits and Systems (ISCAS)//, 17-20 May 2020, Seville, Spain. (Accepted for poster presentation).   * A. D. Carmine, A. Santra, Q. Khan, "A current Efficient 10mA Analog-Assisted Digital Low Dropout Regulator with Dynamic Clock Frequency in 65nm CMOS," //2020 International Symposium on Circuits and Systems (ISCAS)//, 17-20 May 2020, Seville, Spain. (Accepted for poster presentation).
   * K. Peetala, A. Ranjan, R. Aenkamreddi,​ Q. Khan, "An Area Efficient, High-Resolution Fully Foldable Switched-Capacitor DC-DC Converter with 16% Efficiency Improvement,"​ //2020 International Symposium on Circuits and Systems (ISCAS)//, 17-20 May 2020, Seville, Spain. (Accepted for poster presentation).   * K. Peetala, A. Ranjan, R. Aenkamreddi,​ Q. Khan, "An Area Efficient, High-Resolution Fully Foldable Switched-Capacitor DC-DC Converter with 16% Efficiency Improvement,"​ //2020 International Symposium on Circuits and Systems (ISCAS)//, 17-20 May 2020, Seville, Spain. (Accepted for poster presentation).
 +  * S. A. Balagopal and J. Viraraghavan,​ "Flash Based In-Memory Multiply-Accumulate Realisation:​ A Theoretical Study,"​ 2020 IEEE International Symposium on Circuits and Systems (ISCAS), Seville, Spain, 2020, pp. 1-5, doi: 10.1109/​ISCAS45731.2020.9180925. (Accepted for poster)
   * M. V. Praveen and N. Krishnapura,​ "High Linearity Transmit Power Mixers Using Baseband Current Feedback,"​ //IEEE Journal of Solid-State Circuits//, vol. 55, no. 2, pp. 272-281, Feb. 2020. [[https://​ieeexplore.ieee.org/​document/​8889460|doi:​ 10.1109/​JSSC.2019.2945962]]   * M. V. Praveen and N. Krishnapura,​ "High Linearity Transmit Power Mixers Using Baseband Current Feedback,"​ //IEEE Journal of Solid-State Circuits//, vol. 55, no. 2, pp. 272-281, Feb. 2020. [[https://​ieeexplore.ieee.org/​document/​8889460|doi:​ 10.1109/​JSSC.2019.2945962]]
   * A.Baluni and S.Pavan, "A 20 MHz Bandwidth Continuous-Time Delta-Sigma ADC Achieving 82.1 dB SNDR and >100 dB SFDR Using a Time-Interleaved Virtual-Ground-Switched FIR Feedback DAC," // IEEE Custom Integrated Circuits Conference (CICC)//, March 2020. **(Outstanding Student Paper Award)**   * A.Baluni and S.Pavan, "A 20 MHz Bandwidth Continuous-Time Delta-Sigma ADC Achieving 82.1 dB SNDR and >100 dB SFDR Using a Time-Interleaved Virtual-Ground-Switched FIR Feedback DAC," // IEEE Custom Integrated Circuits Conference (CICC)//, March 2020. **(Outstanding Student Paper Award)**
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 ====== Patents ====== ====== Patents ======
 +  * P. Yadav and S. Ramprasath, " Keep-through regions for handling end-of-line rules in routing,"​ US 11,586,796 B1, Feb. 21, 2023. [[https://​patents.google.com/​patent/​US11586796B1|US11586796B1]]
   * M. Bansal, M. McGowan, I. Mirea, Q. Khan, T. Stockstad, B. Walker and T. Sutton, "​Current measurments in switching regulators",​ US 9,755,518, September 5, 2017. [[https://​patents.google.com/​patent/​US9755518|US9755518B2]]   * M. Bansal, M. McGowan, I. Mirea, Q. Khan, T. Stockstad, B. Walker and T. Sutton, "​Current measurments in switching regulators",​ US 9,755,518, September 5, 2017. [[https://​patents.google.com/​patent/​US9755518|US9755518B2]]
   * M. Bansal, Q. Khan and C. Shi, "​Average current mode control of multi-phase switching power converters,"​ US 9,442,140, Sep. 13, 2016. [[https://​patents.google.com/​patent/​JP6185194B2/​en|JP6185194B2]]   * M. Bansal, Q. Khan and C. Shi, "​Average current mode control of multi-phase switching power converters,"​ US 9,442,140, Sep. 13, 2016. [[https://​patents.google.com/​patent/​JP6185194B2/​en|JP6185194B2]]