Abstract:
This paper presents a 1.05 MHz, on-chip RC relaxation oscillator (ROSC) with a temperature coefficient (TC) of 2.5 ppm/°C and an absolute variation of 100 ppm over the bo...Show MoreMetadata
Abstract:
This paper presents a 1.05 MHz, on-chip RC relaxation oscillator (ROSC) with a temperature coefficient (TC) of 2.5 ppm/°C and an absolute variation of 100 ppm over the body-compatible range of 0-40°C. The TC increases to 4.3 ppm/°C over the range from -15 °C to 55 °C. The high temperature stability is achieved using a PTAT current reference and a TC-tunable resistor bank for first-order frequency error compensation along with a digital frequency compensation (DFC) block using a single-bit temperature sensor for second-order compensation. A measured RMS period jitter of 160 ps is achieved with a high-speed comparator. The active power consumption of the ROSC is 69 μW with a 1-V supply, and the leakage power consumption is 110 nW, while power gated. The ROSC achieves a fast startup time of 8 μs by employing a voltage buffer to quickly stabilize the voltage reference.
Published in: IEEE Journal of Solid-State Circuits ( Volume: 54, Issue: 7, July 2019)
Funding Agency:
Charles L. Brown Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, USA
Ningxi Liu (S’15) received the B.S. degree in micro-electronics from Sun Yat-Sen University, Guangzhou, China, in 2011, the M.S. degree in micro-electronics and solid-state electronics from Fudan University, Shanghai, China, in 2014. He is currently pursuing the Ph.D. degree in RLP-VLSI Group, Charles L. Brown Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, USA.
His current r...Show More
Ningxi Liu (S’15) received the B.S. degree in micro-electronics from Sun Yat-Sen University, Guangzhou, China, in 2011, the M.S. degree in micro-electronics and solid-state electronics from Fudan University, Shanghai, China, in 2014. He is currently pursuing the Ph.D. degree in RLP-VLSI Group, Charles L. Brown Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, USA.
His current r...View more
Charles L. Brown Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, USA
Rishika Agarwala received the B.E. degree in electronics and instrumentation from the Medicaps Institute of Technology and Management, Indore, India, in 2014, and the M.S. degree in electrical engineering from the University of Texas at Dallas, Richardson, TX, USA, in 2016. She is currently pursuing the Ph.D. degree with the University of Virginia, Charlottesville, VA, USA.
From 2016 to 2017, she was an RFIC Product and Te...Show More
Rishika Agarwala received the B.E. degree in electronics and instrumentation from the Medicaps Institute of Technology and Management, Indore, India, in 2014, and the M.S. degree in electrical engineering from the University of Texas at Dallas, Richardson, TX, USA, in 2016. She is currently pursuing the Ph.D. degree with the University of Virginia, Charlottesville, VA, USA.
From 2016 to 2017, she was an RFIC Product and Te...View more
Charles L. Brown Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, USA
Anjana Dissanayake (S’17) received the B.S and M.S degrees from the Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea, in 2015 and 2017, respectively, with a research emphasis on micro watt scale ultra low power low noise amplifier (LNA). He is currently pursuing the Ph.D. degree in RLP-VLSI and IECS Group, Department of Electrical and Computer Engineeri...Show More
Anjana Dissanayake (S’17) received the B.S and M.S degrees from the Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea, in 2015 and 2017, respectively, with a research emphasis on micro watt scale ultra low power low noise amplifier (LNA). He is currently pursuing the Ph.D. degree in RLP-VLSI and IECS Group, Department of Electrical and Computer Engineeri...View more
Charles L. Brown Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, USA
Daniel S. Truesdell received the B.S. degree in electrical engineering from the University of Central Florida, Orlando, FL, USA, in 2016. He is currently pursuing the Ph.D. degree in electrical engineering with the University of Virginia, Charlottesville, VA.
His current research interests include energy-efficient mixed-signal circuit design, on-chip oscillators and sensors, energy-harvesting and performance-scalable syste...Show More
Daniel S. Truesdell received the B.S. degree in electrical engineering from the University of Central Florida, Orlando, FL, USA, in 2016. He is currently pursuing the Ph.D. degree in electrical engineering with the University of Virginia, Charlottesville, VA.
His current research interests include energy-efficient mixed-signal circuit design, on-chip oscillators and sensors, energy-harvesting and performance-scalable syste...View more
Charles L. Brown Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, USA
Sumanth Kamineni (S’17) received the B.Tech. degree in electrical and electronics engineering from Sri Venkateswara University, Tirupati, India, the M.Tech. degree from the Vellore Institute of Technology, Vellore, India, in 2012 and 2015, respectively. He is currently pursuing the Ph.D. degree in electrical engineering with the University of Virginia, Charlottesville, VA, USA.
From 2015 to 2017, he was a CAD Engineer at M...Show More
Sumanth Kamineni (S’17) received the B.Tech. degree in electrical and electronics engineering from Sri Venkateswara University, Tirupati, India, the M.Tech. degree from the Vellore Institute of Technology, Vellore, India, in 2012 and 2015, respectively. He is currently pursuing the Ph.D. degree in electrical engineering with the University of Virginia, Charlottesville, VA, USA.
From 2015 to 2017, he was a CAD Engineer at M...View more
Charles L. Brown Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, USA
Benton H. Calhoun (S’02–M’05–SM’12) received the B.S. degree from the University of Virginia, Charlottesville, VA, USA, in 2000, and the M.S. and Ph.D. degrees in electrical engineering from the Massachusetts Institute of Technology, Cambridge, MA, USA, in 2002 and 2006, respectively.
He is currently a Professor with the Electrical and Computer Engineering Department, University of Virginia. His current research interests ...Show More
Benton H. Calhoun (S’02–M’05–SM’12) received the B.S. degree from the University of Virginia, Charlottesville, VA, USA, in 2000, and the M.S. and Ph.D. degrees in electrical engineering from the Massachusetts Institute of Technology, Cambridge, MA, USA, in 2002 and 2006, respectively.
He is currently a Professor with the Electrical and Computer Engineering Department, University of Virginia. His current research interests ...View more
Contents Charles L. Brown Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, USA
Ningxi Liu (S’15) received the B.S. degree in micro-electronics from Sun Yat-Sen University, Guangzhou, China, in 2011, the M.S. degree in micro-electronics and solid-state electronics from Fudan University, Shanghai, China, in 2014. He is currently pursuing the Ph.D. degree in RLP-VLSI Group, Charles L. Brown Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, USA.
His current research interests include ultra-low power (ULP) sub-threshold SRAM, in-memory computing, memory CAD tool, ULP CMOS wake-up radio, and mixed-signal circuit design for Internet of Things (IoT) applications.
Ningxi Liu (S’15) received the B.S. degree in micro-electronics from Sun Yat-Sen University, Guangzhou, China, in 2011, the M.S. degree in micro-electronics and solid-state electronics from Fudan University, Shanghai, China, in 2014. He is currently pursuing the Ph.D. degree in RLP-VLSI Group, Charles L. Brown Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, USA.
His current research interests include ultra-low power (ULP) sub-threshold SRAM, in-memory computing, memory CAD tool, ULP CMOS wake-up radio, and mixed-signal circuit design for Internet of Things (IoT) applications.View more
Charles L. Brown Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, USA
Rishika Agarwala received the B.E. degree in electronics and instrumentation from the Medicaps Institute of Technology and Management, Indore, India, in 2014, and the M.S. degree in electrical engineering from the University of Texas at Dallas, Richardson, TX, USA, in 2016. She is currently pursuing the Ph.D. degree with the University of Virginia, Charlottesville, VA, USA.
From 2016 to 2017, she was an RFIC Product and Test Engineer with Qualcomm, San Diego, CA, USA. Her research interests include low power mixed mode analog front ends and adaptive circuits.
Rishika Agarwala received the B.E. degree in electronics and instrumentation from the Medicaps Institute of Technology and Management, Indore, India, in 2014, and the M.S. degree in electrical engineering from the University of Texas at Dallas, Richardson, TX, USA, in 2016. She is currently pursuing the Ph.D. degree with the University of Virginia, Charlottesville, VA, USA.
From 2016 to 2017, she was an RFIC Product and Test Engineer with Qualcomm, San Diego, CA, USA. Her research interests include low power mixed mode analog front ends and adaptive circuits.View more
Charles L. Brown Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, USA
Anjana Dissanayake (S’17) received the B.S and M.S degrees from the Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea, in 2015 and 2017, respectively, with a research emphasis on micro watt scale ultra low power low noise amplifier (LNA). He is currently pursuing the Ph.D. degree in RLP-VLSI and IECS Group, Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, USA.
His current research interests include nano-watt scale ultra-low power (ULP) CMOS wake up radio (WURX) LNA, mixer, VCO, analog baseband signal processing, automated offset control, mixed mode analog front-end, and reconfigurable receiver design.
Anjana Dissanayake (S’17) received the B.S and M.S degrees from the Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea, in 2015 and 2017, respectively, with a research emphasis on micro watt scale ultra low power low noise amplifier (LNA). He is currently pursuing the Ph.D. degree in RLP-VLSI and IECS Group, Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, USA.
His current research interests include nano-watt scale ultra-low power (ULP) CMOS wake up radio (WURX) LNA, mixer, VCO, analog baseband signal processing, automated offset control, mixed mode analog front-end, and reconfigurable receiver design.View more
Charles L. Brown Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, USA
Daniel S. Truesdell received the B.S. degree in electrical engineering from the University of Central Florida, Orlando, FL, USA, in 2016. He is currently pursuing the Ph.D. degree in electrical engineering with the University of Virginia, Charlottesville, VA.
His current research interests include energy-efficient mixed-signal circuit design, on-chip oscillators and sensors, energy-harvesting and performance-scalable systems, and low-power digital circuit techniques.
Daniel S. Truesdell received the B.S. degree in electrical engineering from the University of Central Florida, Orlando, FL, USA, in 2016. He is currently pursuing the Ph.D. degree in electrical engineering with the University of Virginia, Charlottesville, VA.
His current research interests include energy-efficient mixed-signal circuit design, on-chip oscillators and sensors, energy-harvesting and performance-scalable systems, and low-power digital circuit techniques.View more
Charles L. Brown Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, USA
Sumanth Kamineni (S’17) received the B.Tech. degree in electrical and electronics engineering from Sri Venkateswara University, Tirupati, India, the M.Tech. degree from the Vellore Institute of Technology, Vellore, India, in 2012 and 2015, respectively. He is currently pursuing the Ph.D. degree in electrical engineering with the University of Virginia, Charlottesville, VA, USA.
From 2015 to 2017, he was a CAD Engineer at Microchip Technology, Chennai, India. In 2017, he joined the Robust Low Power VLSI Group, University of Virginia. His current research interests include sub-threshold circuit design, ultra-low power SRAM design, hardware accelerators for machine learning application, and circuit and system design automation.
Sumanth Kamineni (S’17) received the B.Tech. degree in electrical and electronics engineering from Sri Venkateswara University, Tirupati, India, the M.Tech. degree from the Vellore Institute of Technology, Vellore, India, in 2012 and 2015, respectively. He is currently pursuing the Ph.D. degree in electrical engineering with the University of Virginia, Charlottesville, VA, USA.
From 2015 to 2017, he was a CAD Engineer at Microchip Technology, Chennai, India. In 2017, he joined the Robust Low Power VLSI Group, University of Virginia. His current research interests include sub-threshold circuit design, ultra-low power SRAM design, hardware accelerators for machine learning application, and circuit and system design automation.View more
Charles L. Brown Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA, USA
Benton H. Calhoun (S’02–M’05–SM’12) received the B.S. degree from the University of Virginia, Charlottesville, VA, USA, in 2000, and the M.S. and Ph.D. degrees in electrical engineering from the Massachusetts Institute of Technology, Cambridge, MA, USA, in 2002 and 2006, respectively.
He is currently a Professor with the Electrical and Computer Engineering Department, University of Virginia. His current research interests include self-powered systems, internet of things (IoT), body area sensor nodes (BSNs), wireless sensor networks (WSNs), low-power digital circuit design, sub-threshold digital circuits, sub-threshold FPGAs, memory design for end-of-the-roadmap silicon, power delivery circuits and architectures, variation tolerant circuit design methodologies, and low energy electronics for medical applications. He has coauthored the Sub-threshold Design for Ultra Low-Power Systems (Springer, 2006) and authored the Design Principles for Digital CMOS Integrated Circuit Design (NTS Press, 2012).
Dr. Calhoun is a Campus Director and Technical Thrust Leader in the NSF Nanosystems Engineering Research Center for Advanced Self-Powered Systems of Integrated Sensors and Technologies (ASSIST). He is the Co-Founder and Co-CTO of PsiKick, Inc.
Benton H. Calhoun (S’02–M’05–SM’12) received the B.S. degree from the University of Virginia, Charlottesville, VA, USA, in 2000, and the M.S. and Ph.D. degrees in electrical engineering from the Massachusetts Institute of Technology, Cambridge, MA, USA, in 2002 and 2006, respectively.
He is currently a Professor with the Electrical and Computer Engineering Department, University of Virginia. His current research interests include self-powered systems, internet of things (IoT), body area sensor nodes (BSNs), wireless sensor networks (WSNs), low-power digital circuit design, sub-threshold digital circuits, sub-threshold FPGAs, memory design for end-of-the-roadmap silicon, power delivery circuits and architectures, variation tolerant circuit design methodologies, and low energy electronics for medical applications. He has coauthored the Sub-threshold Design for Ultra Low-Power Systems (Springer, 2006) and authored the Design Principles for Digital CMOS Integrated Circuit Design (NTS Press, 2012).
Dr. Calhoun is a Campus Director and Technical Thrust Leader in the NSF Nanosystems Engineering Research Center for Advanced Self-Powered Systems of Integrated Sensors and Technologies (ASSIST). He is the Co-Founder and Co-CTO of PsiKick, Inc.View more
