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  • Nidhi Sharma, Research Scholar, under the supervision of Devarshi Mrinal Das, won the Best Women Research Award in the IEEE WinTechCon, 2024.
  • Dr. Sahibia Kaur Vohra, Research Scholar, under the supervision of Devarshi Mrinal Das, Mahendra Sakare, joined the Forschungszentrum Jülich, Germany, as a Post-Doc Researcher in Neuromorphic Computing.
  • Dr. Nidhi Sharma, Research Scholar, under the supervision of Devarshi Mrinal Das, joined as Post Doctoral Researcher in the System on Chip (SoC) Center, National Chung Cheng University, Taiwan.
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Devarshi Mrinal Das

Assistant Professor
212, JC Bose, Main Campus, IIT Ropar
devarshi.das@iitrpr.ac.in
1881232211
Google Scholar Profile


Introduction

I am an Assistant Professor in Electrical Engineering and an associate faculty at the School of AI and Data Engineering, IIT Ropar. I lead the Integrated System Design Lab (ISDL), focusing on analog, mixed-signal, and RF IC design for computing and sensing. I am a senior IEEE member and part of the AMS/RF committee of the DevSET program. I am an avid reader. Before joining academia, I was a design engineer at the GE Technology Centre (2010–2012) and a lead research engineer in Siemens Corporate R&D. (2017–2018).

Research Highlights

21

Journal Publications

27

Conference Publications

7

Research Projects

8

Patents

3

Awards & Honours

Qualifications
  1. PhD IIT Bombay 2017
  2. M.Tech IIT Delhi 2010
Research Interests
  • Analog & Mixed-Signal IC Design
  • Bio-inspired circuits and systems for AI
  • Semiconductor qubit readout circuits for QC
  • Chip-scale atomic clock ASIC
  • EMI immune circuits for 6G ecosystem
Brief Research Profile

  1. 1. S. K. Vohra, M. Sakare, A. P. James, D. M. Das, "SpiMAM: CMOS Implementation of Bio-Inspired Spiking Multidirectional Associative Memory Featuring In-Situ Learning", IEEE Transactions on Circuits and Systems I: Regular Papers, ,  , novalue
  2. 2. Nidhi Sharma, R. K. Srivsatava, D. Sehgal, Devarshi Mrinal Das, "A Low-power Common-mode Insensitive Rail-to-Rail Dynamic Comparator for ADCs", Integration, ,  , novalue
  3. 3. N. Sharma, V. Hande, Devarshi Mrinal Das, "A Dynamic Comparator With Cross-Coupled Pre-Amplifier With <160 ps Delay and 81 fJ.ns EDP", Integrated Circuits and Systems, ,  , novalue
  4. 4. N. Sharma, S. A. Thomas, V. Hande, Devarshi Mrinal Das, "A Modified Three-Stage Dynamic Comparator Achieving Rail-to-Rail Input Common-mode Range with <86 fJ.ns EDP", IEEE Transactions on Circuits and Systems II: Express Briefs, ,  , novalue
  5. 5. S. A. Thomas, S. Kushwaha, R. Sharma, Devarshi Mrinal Das, "Design and Analysis of 3D Integrated Folded Ferro-Capacitive Crossbar Array for Brain-Inspired Computing System", IEEE Journal on Emerging and Selected Topics in Circuits and Systems, ,  , 2024
  6. 6. S. K. Vohra, S. A. Thomas, Shivdeep, M. Sakare and D. M. Das, "Full CMOS Circuit for Brain-Inspired Associative Memory With On-Chip Trainable Memristive STDP Synapse", IEEE Transactions on Very Large Scale Integration (VLSI) Systems, ,  , 2023
  7. 7. M. A. Saeed, M. Kumar, B. Umapathi and D. M. Das, "Optimization of Slew Mitigation Capacitor in Passive Charge Compensation-Based Delta–Sigma Modulator", IEEE Transactions on Circuits and Systems II: Express Briefs, ,  , 2023
  8. 8. M. A. Saeed, R. K. Srivastava, D. Sehgal, D. M. Das, "Design of a High Precision CMOS Programmable Gain and Data Rate Delta Sigma ADC", Analog Integrated Circuits and Signal Processing, ,  , 2023
  9. 9. M. K. Singh, P. Singh, U. Chichhula, H. Mehra, D. M. Das, M. Sakare, "A PRBS Generator using Merged XOR-D flip-flop as Building Blocks", Circuits, System and Signal Processing, ,  , 2023
  10. 10. K. Varshney, P. Shukla, B. Prakash, D. M. Das, B. Rawat, "Enhancing Resistive Switching Characteristics of MoS2-based Memristor through O2 Plasma Irradiation-Induced Defects", IEEE Journal of the Electron Devices Society, ,  , 2023
  11. 11. K. Varshney, M. S. Yadav, B. Rawat, D. M. Das, "Analysis and Modeling of Bipolar Resistive Switching in Two-Dimensional Graphene Electrode-based Memristor", IEEE Transactions on Electron Devices, 70,  5454 - 5461, 2023
  12. 12. S. Singh, S. Boyapati, D. M. Das, "Impact of EMI on the Reliability of Crossbar Architecture-based Inference in CMOS Technology", IEEE Transactions on Components, Packaging and Manufacturing Technology, 15,  , 2023
  13. 13. S. A. Thomas, S. K. Vohra, R. Kumar, R. Sharma and D. M. Das, "Analysis of Parasitic Effects in a Crossbar in CMOS Based Neuromorphic System for Pattern Recognition Using Memristive Synapses", IEEE Transactions on Nanotechnology, ,  , 2022
  14. 14. D. M. Das, K. Barot, A. Srivastava, M. S. Baghini, "Noise-power-area optimised design procedure for OTAs with complementary input transistors for neural amplifiers", IET Circuits, Devices and Systems, ,  , 2020
  15. 15. A. Karmakar, D. M. Das, M. S. Baghini, "Adaptive analogue calibration technique to compensate electrode motion artefacts in biopotential recording", IET Circuits, Devices and Systems, ,  , 2020
  16. 16. D. M. Das, A. Vidwans, A. Srivastava, M. Ahmad, S. Vaishnav, S. Dewan and M. Shojaei Baghini, "Design and development of an Internet-of-Things enabled wearable ExG measuring system with a novel signal processing algorithm for electrocardiogram", IET Circuits, Devices and Systems, ,  , 2019
  17. 17. A. Srivastava, D. M. Das, P. Mathur, D. K. Sharma, M. S. Baghini, "0.43-nJ/bit OOK Transmitter for Wearable and Implantable Devices in 400-MHz MedRadio Band", IEEE Microwave and Wireless Components Letters, ,  , 2018
  18. 18. D. M. Das, A. Gupta, A. Srivastava, A. Vidwans, M. Ahmad, A. Shelke, S. Kale, J. Ananthapadmanabhan, D K Sharma, M. Shojaei Baghini, "A pulse oximeter system, OxiSense, with embedded signal processing using an ultra-low power ASIC designed for testability", Microelectronics Journal, ,  , 2018
  19. 19. A. Srivastava, N. Sankar K., B. Chatterjee, D. M. Das, M. Ahmad, Rakesh K. K., V. Saraf, J. Ananthapadmanabhan, D. K. Sharma, M. S. Baghini, "Bio-WiTel: A Low-Power Integrated Wireless Telemetry System for Healthcare Applications in 401–406 MHz Band of MedRadio Spectrum", IEEE Journal of Biomedical and Health Informatics, ,  , 2018
  20. 20. B. Chatterjee, N. Modak, A. Amaravati, D. Mistry, D. M. Das, M. S. Baghini, "A Sub-1 V, 120 nW, PVT-Variation Tolerant, Tunable, and Scalable Voltage Reference With 60-dB PSNA", IEEE Transactions on Nanotechnology, ,  , 2017
  21. 21. D. M. Das, A. Srivastava, J. Ananthapadmanabhan, M. Ahmad, M. S. Baghini, "A novel low-noise fully differential CMOS instrumentation amplifier with 1.88 noise efficiency factor for biomedical and sensor applications", Microelectronics Journal, ,  , 2016

  • 1. N. Sharma, A. Pratap, P. A. Husing, Devarshi Mrinal Das, "Intelligent Analog and Mixed-Signal IC (I-AMS-IC) Design: A Conceptual Framework, and Case Study on AI Integration", 2025 Seventh International Symposium on Computer, Consumer and Control (IS3C), Taichung, Taiwan, ,  , 2025
  • 2. M. K. Singh, M. K. Gautam, P. Singh, R. S. Nagulapalli, D. M. Das and M. Sakare, "A Double Cross-Coupled Delay Cell for High-Frequency Differential Ring VCOs", IEEE Asia Pacific Conference On Circuits And Systems (IEEE APCCAS) 2023, ,  , 2023
  • 3. N. Sharma, R. K. Srivastava, V. Hande, D. Sehgal, D. M. Das, "A Self-Calibration Logic Circuit Agnostic To Offset Calibration Technique For High-Precision Dynamic Comparator", IEEE Women in Technology Conference (IEEE WINTECHCON) 2023, ,  , 2023
  • 4. S. K. Vohra, M. Sakare, D. M. Das, "Full CMOS Analog Circuit Implementation of Multi-Functional Pavlov Associative Memory using STDP Learning", IEEE Women in Technology Conference (IEEE WINTECHCON) 2023, ,  , 2023
  • 5. Shivdeep, S. Sharma, S. Boyapati, D. M. Das, "A Two Stage Miller OpAmp with Low Voltage Cascode Current Source with High EMI Immunity", IEEE International Symposium and Exhibition on Electromagnetic Compatibility (EMC Europe 2023), ,  , 2023
  • 6. M. K. Singh, P. Singh, D. M. Das and M. Sakare, "A Low Power Differential Delay Cell without Cross-Coupled Latch for Ring VCO", 2023 18th Conference on Ph.D Research in Microelectronics and Electronics (PRIME), ,  , 2023
  • 7. S. A. Thomas, S. K. Vohra, S. Kushwaha, R. Sharma and D. M. Das, \"Modeling and Analysis of CMOS-based Folded Memristive Crossbar Array for 3D Neuromorphic Integrated Circuits,\" 2023 IEEE 73rd Electronic Components and Technology Conference (ECTC), Orlando, FL, USA, 2023, pp. 960-966, doi: 10.1109/ECTC51909.2023.00164., "Modeling and Analysis of CMOS-based Folded Memristive Crossbar Array for 3D Neuromorphic Integrated Circuits", 2023 IEEE 73rd Electronic Components and Technology Conference (ECTC), ,  , 2023
  • 8. N. Sharma, V. Hande, R. K. Srivastava and D. M. Das, "6-bit 1-GS/s Partially Active Flash ADC with Comparator Offset Correction", 2022 IEEE International Symposium on Smart Electronic Systems (iSES), ,  , 2022
  • 9. K. Varshney, M. S. Yadav, D. M. Das and B. Rawat, "Performance of Graphene Oxide-based Memristor for Nonvolatile Memory and Neuromorphic Computing", 2022 IEEE International Conference on Emerging Electronics (ICEE), ,  , 2022
  • 10. S. Chittoriya, Shivdeep, K. K. Jha, D. M. Das and R. Sharma, "A Low-Overhead PUF Based Hardware Security Technique to Prevent Scan Chain Attacks for Industry-Standard DFT Architecture", 2022 IEEE 65th International Midwest Symposium on Circuits and Systems (MWSCAS), ,  , 2022
  • 11. K. Poojith, K. Varshney, M. S. Yadav, D. M. Das and B. Rawat, \"Modulation of Resistive Switching Behaviour of TaOx-based Memristor Through Device Engineering\", 2022 IEEE 7th International conference for Convergence in Technology (I2CT), 2022, pp. 1-6, doi: 10.1109/I2CT54291.2022.9824458., "Modulation of Resistive Switching Behaviour of TaOx-based Memristor Through Device Engineering", 2022 IEEE 7th International conference for Convergence in Technology (I2CT), ,  , 2022
  • 12. Shivdeep, S. K. Vohra, N. Goel and D. M. Das, "A Robust Training Signal Generator for Trainable Memristive Digital to Analog Converter", 2021 IEEE International Symposium on Smart Electronic Systems (iSES), ,  , 2021
  • 13. S. Kumar and D. M. Das, "Python-LTspice Co-Simulation to Train Neural Networks with Memristive Synapses to Learn Logic Gate Operations", 2021 IEEE International Symposium on Smart Electronic Systems (iSES), ,  , 2021
  • 14. S. K. Vohra, S. A. Thomas, M. Sakare, D. M. Das, "Analytical Modelling of a CMOS Inter Spike Interval Decoder for Resistive Crossbar based Brain Inspired Computing", 25th International Symposium on VLSI Design and Test (VDAT), 2021, ,  , 2021
  • 15. A. Srivastava, D. M. Das, M. S. Baghini, \"Design and Implementation of 0.23 nJ/bit Reference-Spur-Free FSK/OOK Transmitter at 400 MHz for Wearable Health Monitoring\", 2021 IEEE Biomedical Circuits and Systems Conference (BioCAS), 2021, pp. 1-5, doi: 10.1109/BioCAS49922.2021.9644937 (selected as one of the top contributions to the conference)., "Design and Implementation of 0.23 nJ/bit Reference-Spur-Free FSK/OOK Transmitter at 400 MHz for Wearable Health Monitoring", 2021 IEEE Biomedical Circuits and Systems Conference (BioCAS), ,  , 2021
  • 16. S. K. Vohra, S. Thomas, M. Sakare, D. M. Das, "Full CMOS Implementation of Bidirectional Associative Memory Neural Network with Analog Memristive Synapse", 2021 IEEE International Midwest Symposium on Circuits and Systems (MWSCAS), ,  , 2021
  • 17. S. A. Thomas, S. K. Vohra, R. Kumar, R. Sharma, D. M. Das, "Analysis of Parasitics on CMOS based Memristor Crossbar Array for Neuromorphic Systems", 2021 IEEE International Midwest Symposium on Circuits and Systems (MWSCAS), ,  , 2021
  • 18. S. Das, S. Wadhwa, D. M. Das, "A CMOS based High Resolution All-Digital Temperature Sensor with Low Power Supply Sensitivity", 2021 IEEE International Midwest Symposium on Circuits and Systems (MWSCAS), ,  , 2021
  • 19. M. K. Singh, P. Singh, D. M. Das, M. Sakare, "A low power 8 X 27 - 1 PRBS using Exclusive-OR gate merged D flip-flops", 2021 IEEE International Midwest Symposium on Circuits and Systems (MWSCAS), ,  , 2021
  • 20. D. M. Das, A. Srivastava, A. Gupta, K. Barot, M. S. Baghini, "A noise-power-area optimized novel programmable gain and bandwidth instrumentation amplifier for biomedical applications", 2017 IEEE International Symposium on Circuits and Systems (ISCAS), ,  , 2017
  • 21. A. Srivastava, N. Sankar, D. M. Das, M. S. Baghini, "LNA-LO Co-design Considerations for Low Intermediate Frequency Receivers in 401-406 MHz MedRadio Spectrum for Healthcare Applications", 2017 30th International Conference on VLSI Design, ,  , 2017
  • 22. A. Srivastava, D. M. Das, M. S. Vignesh, K. Bharadwaj, S. Dewan and M. S. Baghini, "Bio-telemetry and bio-instrumentation technologies for healthcare monitoring systems", 2016 IEEE Region 10 Humanitarian Technology Conference (R10-HTC), ,  , 2016
  • 23. A. Srivastava, D. M. Das, D. K. Sharma, M. S. Baghini, "SAW resonator oscillator based injection locked OOK transmitter for MedRadio spectrum", 2016 14th IEEE International New Circuits and Systems Conference (NEWCAS), ,  , 2016
  • 24. P. Kimtee, D. M. Das, M. S. Baghini, "A mismatch insensitive reconfigurable discrete time biosignal conditioning circuit in 180 nm MM CMOS technology", 2016 20th International Symposium on VLSI Design and Test (VDAT),, ,  , 2016
  • 25. A. Srivastava, N. Sankar, K. K. Rakesh, B. Chatterjee, D. M. Das, M. S. Baghini, "Design and measurement techniques for a low noise amplifier in a receiver chain for MedRadio spectrum of 401–406 MHz frequency band", 2016 20th International Symposium on VLSI Design and Test (VDAT), ,  , 2016
  • 26. D. M. Das, J. Ananthapadmanabhan, M. S. Baghini, D. K. Sharma, "Design considerations for high-CMRR low-power current mode instrumentation amplifier for biomedicai data acquisition systems", 2014 21st IEEE International Conference on Electronics, Circuits and Systems (ICECS), ,  , 2014
  • 27. B. Subrahmanyam, D. M. Das, M. S. Baghini and J. Redoute, "A balanced CMOS OpAmp with high EMI immunity", International Symposium on Electromagnetic Compatibility (EMC), ,  703-708, 2014

  • 1. Patent, "Ultra Low Noise Instrumentation Amplifier" ISBN:Indian Patent 473407 published by - Indian Patent Office Year: 2023 authors- D. M. Das, M. S. Baghini
  • 2. Patent, "A handheld pulse oximeter system" ISBN:Indian Patent 498947 published by - Indian Patent Office Year: 2024 authors- A. Gupta, D. M. Das, M. S. Baghini, et. al.
  • 3. Patent, "A Design Method for Low Power and Low Noise Biomedical Signal Conditioning Circuit" ISBN:Indian Patent 408593 published by - Indian Patent Office Year: 2022 authors- K. J. Barot, D. M. Das, M. S. Baghini
  • 4. Patent, "Voltage Mode Log Domain Low Pass Filter (LDLPF) for Healthcare Applications" ISBN:Indian Patent 398460 published by - Indian Patent Office Year: 2022 authors- J. Ananthapadmanabhan, D. M. Das, M. S. Baghini
  • 5. Patent, "SAW Resonator Oscillator Based Injection Locked OOK Transmitter for Healthcare Applications" ISBN:Indian Patent 381814 published by - Indian Patent Office Year: 2021 authors- A. Srivastava, D. M. Das, M. S. Baghini
  • 6. Patent, "Design Considerations for Transmitter and Receiver for Personal Healthcare Applications" ISBN:Indian Patent 408641 published by - Indian Patent Office Year: 2022 authors- A. Srivastava, N. S. Karuthedath, B. Chaterjee, M. Ahmad, R. K. Kukkundoor, D. M. Das, V. Saraf, J. AnanthPadmanabhan, D. K. Sharma, M. S. Baghini,
  • 7. Patent, "Pseudo-random binary sequences (PRBS) generator for performing on-chip testing and a method thereof" ISBN:US patent 11,774,496 published by - US Patent Office Year: 2023 authors- M. Sakare, M. K. Singh, P. Singh, D. M. Das, V. G. Hande,
  • 8. Patent, "A THREE-DIMENSIONAL FOLDED CAPACITIVE CROSSBAR ARRAY SYSTEM" ISBN: published by - Indian Patent Office Year: 2025 authors- S. A. Thomas, S. K. Vohra, R. Sharma, Devarshi Mrinal Das

  • 1. Senior Member
  • 2. IEEE

S. No. Title Funding Agency Role Start Year - End Year Amount (In Lacs) Details
1 Noise-power-area optimised instrumentation amplifier for sensing applications Science and Engineering Research Board (SERB) PI 2022 - 2025 34.000
2 Design and development of an IoT enabled Pulse-oximeter system for integrating with oxygen concentrators Science and Engineering Research Board (SERB) PI 2022 - 2023 9.000
3 The AI-enabled solar-based multi-port high gain electric vehicle AC charging station for domestic and industrial use Ministry of Electronics and Information Technology (MeitY) CO-PI 2022 - 2024 66.000
4 ASIC and Package Design of Ultra Small Atomic Clock SMDP-C2S of MeitY CO-PI 2023 - 2028 285.000
5 Electromagnetic Interference Mitigation Techniques for Analog and Mixed-Signal CMOS Integrated Circuits in 6G Environment for Robust Front-End Design Department of Telecommunication PI 2025 - 2028 121.000
6 Design and Demonstration of a Highly Scalable Quantum Computer using Semiconducting Qubits Department of Science and Technology (DST) PI 2025 - 2030 130.000

S. No. Title Funding Agency Start Year - End Year Amount (In Lacs) Details
1 Design modifications for improving DC rating of a three-speed rotary blower switch Gillard Electronics 2019 - 2019 1.000

Code Title L-T-P-S-C Type Degree Year Semester
EE301 Analog Circuits 3-1-0-5-3 Core B.tech. 2025 Semester I
EE302 Analog Circuits Lab 0-0-3-1.5-1.5 Core B.tech. 2025 Semester I
EE657 Mixed Signal IC Design 3-0-0-6-3 Elective M.tech. - Microelectronics and VLSI Design 2024 Semester II
EE662 Selected Topics in Microelectronics and VLSI Design 3-0-0-6-3 Elective M.tech. - Microelectronics and VLSI Design 2024 Semester II
EE302 Analog Circuits Lab 0-0-3-1.5-1.5 Core B.tech. 2024 Semester I
EE302 Analog Circuits Lab 0-0-3-1.5-1.5 Core B.tech. 2024 Semester I

  • 1. Dr. Sahibia Kaur Vohra (2019-25)
  • 2. Dr. Sherin A. Thomas (2019-25)
  • 3. Dr. Nidhi Sharma (2019-25)
  • 4. Dr. Kanupriya Varshney (2020-25)

  • 1. PhD (VLSI) Coordinator
  • 2. Library Committee Member

Awards And Honours

1. Sahibia Kaur Vohra received the best paper award in the Wintechcon 2023

2. Sherin Thomas received the Best student's paper award in Mixdes 2024, Poland.