Time-Mode Analog-to-Digital Conversion Using Standard Cells. - Vishnu Unnikrishnan 001; Mark Vesterbacka (IEEE Trans. Circuits Syst. I Regul. Pap., 2014)

Linearization of synthesizable VCO-based ADCs using delta modulation. - Vishnu Unnikrishnan 001; Mark Vesterbacka (ECCTD, 2015)

A fully synthesized all-digital VCO-based analog-to-digital converter. - Vishnu Unnikrishnan 001; Srinivasa Rao Pathapati; Mark Vesterbacka (NORCAS, 2015)

A NAND gate based standard cell VCO for use in synthesizable ADCs. - Vishnu Unnikrishnan 001; Mark Vesterbacka (NORCAS, 2015)

VCO-based ADCs for IoT applications. - Vishnu Unnikrishnan 001; Mark Vesterbacka; Atila Alvandpour (ISIC, 2016)

Mixed-Signal Design Using Digital CAD. - Vishnu Unnikrishnan 001; Mark Vesterbacka (ISVLSI, 2016)

Linearization of VCO-based ADCs using asynchronous sigma-delta modulation. - Vishnu Unnikrishnan 001; Mark Vesterbacka (MWSCAS, 2016)

Design of a VCO-based ADC in 28 nm CMOS. - Vishnu Unnikrishnan 001; Mark Vesterbacka (NORCAS, 2016)

Design of VCO-based ADCs. - Vishnu Unnikrishnan 001 (2016)

Mitigation of Sampling Errors in VCO-Based ADCs. - Vishnu Unnikrishnan 001; Mark Vesterbacka (IEEE Trans. Circuits Syst. I Regul. Pap., 2017)

A VCO-based ADC with Relaxation Oscillator for Biomedical Applications. - Olaitan Olabode; Antti Ontronen; Vishnu Unnikrishnan 001; Marko Kosunen; Jussi Ryynänen (ICECS, 2018)

Ring Counters as Phase Accumulator in VCO-Based ADCs. - Mark Vesterbacka; Vishnu Unnikrishnan 001 (ICECS, 2018)

A 3-43ps time-delay cell for LO phase-shifting in 1.5-6.5GHz beamsteering receiver. - Yury Antonov; Mahwish Zahra; Kari Stadius; Zahra Khonsari; Nouman Ahmed; Ilia Kempi; Juha Inkinen; Vishnu Unnikrishnan 001; Jussi Ryynänen (NEWCAS, 2018)

A Low-Power Hardware Stack for Continuous Data Streaming from Telemetry Implants. - Ilia Kempi; Nouman Ahmed; Andreas Hammer 001; Olaitan Olabode; Vishnu Unnikrishnan 001; Marko Kosunen; Jussi Ryynänen (NORCAS, 2018)

A Configurable Hysteresis Comparator for Asynchronous Sigma-Delta Modulators. - Olaitan Olabode; Vishnu Unnikrishnan 001; Ilia Kempi; Andreas Hammer 001; Marko Kosunen; Jussi Ryynänen (NORCAS, 2018)

A Delay-Based LO Phase-Shifting Generator for a 2-5GHz Beamsteering Receiver in 28nm CMOS. - Yury Antonov; Mikko Valkama; Marko Kosunen; Jussi Ryynänen; Mahwish Zahra; Kari Stadius; Zahra Khonsari; Ilia Kempi; Toni Miilunpalo; Juha Inkinen; Vishnu Unnikrishnan 001; Lauri Anttila (ESSCIRC, 2019)

A Sensor Interface for Neurochemical Signal Acquisition. - Olaitan Olabode; Marko Kosunen; Vishnu Unnikrishnan 001; Tommi Palomäki; Tomi Laurila; Kari Halonen; Jussi Ryynänen (MWSCAS, 2019)

Injection Locking of Ring Oscillators with Digitally Controlled Delay Modulation. - Vishnu Unnikrishnan 001; Okko Järvinen; Kari Stadius; Marko Kosunen; Jussi Ryynänen (ISCAS, 2020)

Resilient flow control for wireless data streaming in inductively coupled medical implants. - Ilia Kempi; Nouman Ahmed; Andreas Hammer 001; Olaitan Olabode; Vishnu Unnikrishnan 001; Marko Kosunen; Jussi Ryynänen (Microprocess. Microsystems, 2020)

Time-Based Sensor Interface for Dopamine Detection. - Olaitan Olabode; Marko Kosunen; Vishnu Unnikrishnan 001; Tommi Palomäki; Tomi Laurila; Kari Halonen; Jussi Ryynänen (IEEE Trans. Circuits Syst., 2020)

True-Time-Delay Beamforming Receiver With RF Re-Sampling. - Kalle Spoof; Vishnu Unnikrishnan 001; Mahwish Zahra; Kari Stadius; Marko Kosunen; Jussi Ryynänen (IEEE Trans. Circuits Syst., 2020)

Energy-Efficient Array Transmitters Through Outphasing and Over-the-Air Combining. - Vesa Lampu; Guixian Xu; Lauri Anttila; Alberto Brihuega; Marko Kosunen; Vishnu Unnikrishnan 001; Jussi Ryynänen; Mikko Valkama (ACSCC, 2021)

A 100-750 MS/s 11-Bit Time-to-Digital Converter With Cyclic-Coupled Ring Oscillator. - Okko Järvinen; Vishnu Unnikrishnan 001; Waqas Siddiqui; Teuvo Korhonen; Kimmo Koli; Kari Stadius; Marko Kosunen; Jussi Ryynänen (IEEE Access, 2021)

Data Conversion With Subgate-Delay Time Resolution Using Cyclic-Coupled Ring Oscillators. - Vishnu Unnikrishnan 001; Okko Järvinen; Waqas Siddiqui; Kari Stadius; Marko Kosunen; Jussi Ryynänen (IEEE Trans. Very Large Scale Integr. Syst., 2021)

A 0.8-6 GHz True-Time-Delay Beam-Nulling Receiver Front-End. - Kalle Spoof; Miikka Tenhunen; Vishnu Unnikrishnan 001; Kari Stadius; Marko Kosunen; Jussi Ryynänen (ICECS 2022, 2022)

Design of Cyclic-Coupled Ring Oscillators with Guaranteed Maximal Phase Resolution. - Okko Järvinen; Vishnu Unnikrishnan 001; Ilia Kempi; Kari Stadius; Marko Kosunen; Jussi Ryynänen (ISCAS, 2022)

A 0.9-Nyquist-Band Digital Timing Mismatch Correction for Time-Interleaved ADCs Achieving Delay Tuning Range of 0.12-Sample-Period. - Ilia Kempi; Okko Järvinen; Marko Kosunen; Vishnu Unnikrishnan 001; Kari Stadius; Jussi Ryynänen (ISCAS, 2022)

A 2 GS/s 9-bit Time-Interleaved SAR ADC with Overlapping Conversion Steps. - Miikka Tenhunen; Kalle Spoof; Vishnu Unnikrishnan 001; Kari Stadius; Marko Kosunen; Jussi Ryynänen (NEWCAS, 2022)

Reconfigurable Signal Processing and DSP Hardware Generator for 5G Transmitters. - Agnimesh Ghosh; Andrei Spelman; Tze Hin Cheung; Dhanashree Boopathy; Vishnu Unnikrishnan 001; Vesa Lampu; Guixian Xu; Lauri Anttila; Kari Stadius; Marko Kosunen; Jussi Ryynänen (NorCAS, 2022)

True-Time-Delay Receiver IC With Reconfigurable Analog and Digital Beamforming. - Kalle Spoof; Miikka Tenhunen; Vishnu Unnikrishnan 001; Kari Stadius; Marko Kosunen; Jussi Ryynänen (IEEE Access, 2022)

Energy-Efficient Cyclic-Coupled Ring Oscillator With Delay-Based Injection Locking. - Okko Järvinen; Vishnu Unnikrishnan 001; Ilia Kempi; Santeri Porrasmaa; Kari Stadius; Marko Kosunen; Jussi Ryynänen (IEEE Trans. Circuits Syst. II Express Briefs, 2022)

High-Precision Time-to-Digital Conversion for Calibration of Outphasing Radio Transmitters. - Dhanashree Boopathy; Tze Hin Cheung; Andrei Spelman; Agnimesh Ghosh; Vesa Lampu; Lauri Anttila; Kari Stadius; Marko Kosunen; Jussi Ryynänen; Vishnu Unnikrishnan 001 (NEWCAS, 2023)

Multilevel Outphasing With Over-the-Air Combining in Large Antenna Arrays. - Vesa Lampu; Guixian Xu; Alberto Brihuega; Marko Kosunen; Vishnu Unnikrishnan 001; Jussi Ryynänen; Christian Fager; Mikko Valkama; Lauri Anttila (IEEE Trans. Commun., 2023)

Variable Time-Step 2.5-15 GHz Phase Modulator with Pre-Distortion for Outphasing Transmitters. - Tze Hin Cheung; Agnimesh Ghosh; Andrei Spelman; Dhanashree Boopathy; Vishnu Unnikrishnan 001; Lauri Anttila; Mikko Valkama; Marko Kosunen; Kari Stadius; Jussi Ryynänen (NewCAS, 2024)

Reconfigurable Signal Processing and DSP Hardware Generator for 5G and Beyond Transmitters. - Agnimesh Ghosh; Andrei Spelman; Tze Hin Cheung; Dhanashree Boopathy; Kari Stadius; Manil Dev Gomony; Mikko Valkama; Jussi Ryynänen; Marko Kosunen; Vishnu Unnikrishnan 001 (IEEE Trans. Very Large Scale Integr. Syst., 2024)

Digital Polar Transmitters for Massive MIMO: Sum-Rate and Power Efficiency Analysis. - Guixian Xu; Vesa Lampu; Marko Kosunen; Vishnu Unnikrishnan 001; Jussi Ryynänen; Mikko Valkama; Lauri Anttila (IEEE Trans. Wirel. Commun., 2024)